Hyperlexia – Reading at 3 but not speaking to you


My two boys are both autistic but I really struggled with my youngest son’s autism diagnosis. A lot of little things I found hard to explain and it didn’t add up for me.  That was until I learned about Hyperlexia that it all made sense. 

There is not a lot of information about hyperlexia but what I have found describes my youngest son perfectly. 

What is Hyperlexia?

Hyperlexia is a self taught ability to read before the age of 5. An intense fascination with numbers and letters. Alongside significant social communication difficulties.

Hyperlexia is not something that is diagnosed where I live in the UK and very few of the autism professionals we work with know much about it.  The biggest struggle I have is people hear you say your 3 year old can read a whole book and they think they are a genius. However hyperlexia also includes significant communication difficulties.  So my son can read a book but he is unlikely to fully understand most of the words he is reading. Furthermore he is unable to have a conversation with you and can’t even say hello to you. 

Personally I feel like he is learning in a different order so when his peers catch up with reading hopefully my boy will be catching up with his communication skills.

Typical Hyperlexia Traits

I am not an expert just a mum who has researched her childs traits and self diagnosed so I will just share our personal experience with you.

Intense fascination with numbers and letters

When people would ask what does your child like? For a long time the only answer I had was letters and numbers.  At 18 months his favourite thing in the world was Alphablocks and lining up letters in the order of the alphabet.  Before his first words my youngest was making all the letter sounds. Saying the alphabet (in full) and counting 1-10 were the first and only things he said for a long time.

My son was able to recognise letters and numbers from a young age. In any room he would be drawn to anything with letters or numbers.  The first couple of times he spelt out words (just turned 2) I assumed he was copying something or it was a fluke. 

Cat Cat spelt out on floor puzzle
Cat spelled with floor puzzle

However at 2-3 he started to spell out long words like holiday and universal correctly and it was clear he has a great visual memory. 

If we watch a film we have to watch the credits, this is my son’s favourite bit.  Given free time on the I-pad he will put on a film and skip straight to the credits.  He is fascinated by all the letters, he even started to spell out the words wanting me to say them. Obviously these are not everyday words I used with him at age 3.

Words spelt out by my 3 year old from memory

Learning to read

Whilst every child learns at a different pace most children begin with letter recognition at age 2-3.  Typically children would then be able to identify most letters between ages 4 and 5. Children will then begin reading words at 4-5 and be able to read by 6-7. Every child is different but for those with hyperlexia you will have a self-taught ability to read before age 5.

From age 2 my son has been constantly with a book, he takes them everywhere.  We cannot leave the house without a book and they go to bed with him too. At first he would want books read to him over and over, then he began to repeat whole books displaying an amazing auditory memory. Interestingly whilst he was able to recite the whole of the Gruffalo he was only able to communicate in individual words.

At age 3 I would watch him sit reciting his favourite books whilst pointing at the individual words, he was teaching himself to read.  His special interest for a long time has been books, particularly Julia Donaldson books and the Ten Little series.  He now reads new books and is particularly fond of the Read it Yourself books. He will pick up a new book and read the whole thing, including the publishing page and any text even if it’s not part of the story. 

Read it Yourself Books
Ladybird Read it Yourself Books

Whist it sounds amazing I am certain he has little understanding of many of the books.  One of his favourite thing is to watch a tv film like Stick Man and read along with his book.  This is how he is learning to understand the book.


Communication difficulties can be a range of different things including social communication, verbal communication and understanding.  Every child is likely to display differently.

My son had delayed speech and did not start to say words until age 2.  He quickly build up a large vocabulary of individual words.  However he had no functional communication.  We began using the Picture Exchange Communication System with him as this is something his brother was already using.  His speech is improving but there is still little ability to have any kind of social or typical verbal interaction.

Echolalia is when a person repeats what has been said to them or repeats noises, it can be immediate or delayed. My son began by repeating nursery rhymes and then books.  Whilst he was only able to say individual words when requesting something he could recite a whole book in one go. 

It is a fascinating way to learn to speak but he is beginning to use those learnt phrases in context. So my just turned 4 year old is generally speaking in phrases from books that he has learnt. For example ‘stop I implore’ and ‘what a good idea’ both from Julia Donaldson books. His speech would easily be described as unusual.

He also has difficulty understanding verbal language. He cannot answer what / why / when questions as he doesn’t understand the meaning. If he responds at all he will likely just repeat the question back to you.

Furthermore his social skills are lacking and awkward and he has difficulty engaging with others particularly peers.  His communication profile fits with his autism diagnosis.

Other typical hyperlexia traits include a need for routines and structure. Difficulty with transitions and strong auditory and visual memories.


More information on hyperlexia

Many children will have communication difficulties, be advanced readers or have a strong interest in letters or numbers.  It is the combination of these traits that mean a child is likely to have hyperlexia.

Interestingly some suggest there are three different types of hyperlexia.

  • Type 1 – a bright neurotypical child that is an early reader
  • Type 2 – an autistic child who has hyperlexia as an additional trait
  • Type 3 – an early reader who displays many autistic behaviours but grows out of them

Personally I found type 3 unhelpful as it made me question if my son should be diagnosed as autistic.  In reality he has significant difficulties that fit with the autism diagnosis in addition to hyperlexia and that diagnosis is the only way to access the support he needs. 

Links to more information about hyperlexia:

And Next Comes L has lots of information about hyperlexia which I have found very helpful.

This PDF from Judy and David on What is Hyperlexia is very useful.

Hyperlexia supports

Creating routines has been particularly helpful for us particularly at bedtime.  Using Visual aids to support understanding and to help with transitions has made a big difference to us.

We have also found music therapy and play have worked well with my youngest.  Books and using books and play to teach meaning has been great. I like to create play activities based on his favourite books so we can act them out together.

Squash and Squeeze Play
Squash and Squeeze Play

There are so many great letter and number games such as Orchard Toys Match and Spell and Alphabet Lotto.  Goula also do some great number puzzles. Letter and alphabet puzzles are often popular.

I highly recommend anything Alphablocks or Numberblocks related. I also quickly found that most letter sets aimed at young children are a great start but no use when your child starts to spell out words as they usually just have one of each letter.  So things like Bananagrams or Scrabble sets are great as they are designed for you to use with spelling out words.  For your fridge meme magnets are much better than the kid’s alphabet magnets as again it has more letters for spelling. For number fans this 1-100 board is lovely.

Numbers 1-100

Do you know a child that has hyperlexia? I would love to learn more so please do share information in the comments.

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  1. Amalena
    31st October 2019 / 10:04 am

    Very interesting, I have never heard of it before!

    I supposedly taught myself to read and write by the time I was 5ish (I don’t really remember this anymore but my mom says I did it by learning together with my brother who is 3 years older and where I grew up children start school at age 6 or 7). I don’t think I had problems understanding language though but I am very much an introvert and struggle with social anxiety so social communication is something I’ve never mastered.

    My son is autistic, he said his first word just before he was 5 (he is almost 6 now) but he’s always had an interest in letters and numbers (he absolutely loves watching credits too but he loves to watch anything that moves in a line, for example cars on the road etc.).
    His memory is great and I know he can recognize lots of words but I don’t think he can really read. He still struggles putting together a simple 2 word sentence on his own but he learns phrases and even whole sentences and uses them appropriately in a situation which is great for now as it’s really helping him to express himself. He also taught himself to write the alphabet and numbers which I discovered by chance when he was about 3.5!

    There is a younger boy in his school who’s been able to read since he was probably 3ish but his functional communication and social skills are still very much limited (he’s 5 now).

    I still find it sometimes difficult to understand how their little brains work, they excel in so many things but struggle terribly with other ones.

    Greetings from the South East! xx

    • admin
      31st October 2019 / 11:45 am

      Hi Amalena. It is fascinating isn’t it. Your son sounds like he has more similarities with my eldest, he likes numbers and letter and can write the alphabet but has very few words and I don’t think he can read more than a few familiar words. I agree it is hard to understand how someone can excel so well in one area and struggle enormously in another but I guess thats what diversity is all about. I am interested to see how my youngest developes as I am not clear if hyperlexia becomes irrelevant as a child gets older as the focus seems to be on the reading ability under 5.

  2. 1st November 2019 / 9:15 pm

    This is really interesting. I only came across hyperlexia recently but this has really helped my understanding. We love the read it yourself books too!

    • admin
      1st November 2019 / 10:52 pm

      They are great books. Need to get some more for Christmas

  3. Feel the Love
    17th August 2020 / 5:10 pm

    My grandchild has hyperlexia 3. She is just one year old and is obsessed with books and flashcards (and has been for the last few months). Her mum reads her at least 80-100 hardcover baby books per day (often repeating some of them). She also likes to be held and will point at something and say “ack,” her version of the word “that” which is her way of requesting to have the thing that she’s pointing at named. So, there is a huge emphasis on naming things, reading, and looking at picture flashcards that have words on them (and having the adult speak the word). She originally was saying a few words, though now she seems to not be gaining words (and doesn’t have them clearly, she will just stop using a word). She can make a few of the baby sign language signs such as for cat or milk. She does like music. We have music time with instruments, or she plays her little piano, and she listens to music and will move her body from side to side or back and forth. I can definitely see the autism-like traits, she is easily frustrated, isn’t getting the verbal skills that one might expect, and is truly obsessed with information. There are many great baby books, including things like rocket science for babies, books on art and literature (abridged stories), as well as nursery rhymes, Dr. Seuss, The Very Hungry Catapillar, books about animals, farms, and nature, and so on, and she likes them all.

    • admin
      17th August 2020 / 6:59 pm

      Flashcards and books are brilliant, my son had such a huge vocabulary of named things and I’m sure this is why. It’s fascinating watching his language develop differently to his peers. Music has always been popular and it’s so wonderful hearing him sing all the songs now (he is now 4) his older brother is still non verbal but beginning to do actions to songs too. The Hungry Caterpillar is also very popular here although my youngest keeps acting it out and eating half the fruit bowl as he tells the story! Thanks for stopping by and sharing about your granddaughter sounds like she is doing really well.

      • Feel the Love
        1st November 2020 / 3:52 am

        Haha, smiling thinking of your youngest “eating half the fruit bowl as he tells a story.” Things are continuing to do well here. It is clear that my granddaughter is learning words through echolalia, so that is interesting. The baby is obsessed with cats which seem to activate her emotions. Sometimes she will have an interest in playing with physical things, like blocks or toys, yet having books or flashcards read to her, or looking at books or flashcards by herself, by far remains her fave activities. That is nice to hear that music was always popular with your son as well (her love of music continues). You are welcome for the virtual visit. Thank you for making a wonderful blog sharing your experiences (hyperlexia support is helpful). Take care.

        • admin
          2nd November 2020 / 2:53 pm

          Thank you this is lovely to hear. Books and flashcards sound like the way to go, my youngest is far more likely to play with me if it relates to his favourite book. Another game we love is using scrabble tiles to write out words on flashcards and I am allowed to help find letters! Really pleased you gave found the blog helpful xx

  4. Yvonne Moore
    28th December 2020 / 8:24 pm

    my son used echolalia until he was 6, he could read a book and tell the time when he was 4, he is now 19 and he has learnt to use phrases in the right context even if they are all phrases he repeats from what he hears online, I know he does this because he uses a lot of old english words or american descriptions, I am worried because he is vulnerable and is learning a lot of negative opinions online, but he is also an adult so I cant stop him repeating this stuff

    • admin
      30th December 2020 / 6:00 pm

      The speech of my 5 year old is really coming along still very phrase based but over time I think this becomes less obvious to others. It is really hard once kids become adults and working out the right balance to support them. All you can do is teach him about checking sources of information and to be wary of information online but it can be really hard. I have adults in my life who will not listen to opposing viewpoints it is very frustrating. I wish more was done at school to teach about information sourcing, we did lots at university but these days it is so much more important for secondary age kids.

  5. C
    17th October 2023 / 7:58 am

    Hi there! This sounds exactly like my 4 year old. Fascinated by letters and numbers, he is reading – no real interest in typical Thomas the Tank Engine/Paw Patrol etc but will watch Numberblocks avidly. I think his first words were numbers. He is not yet able to have a to or fro conversation, or understand temporal indicators. He is mainstream school, and happy – although I think his school will question whether he needs more support. He has an EHCP and PECS book. Wondering how your little boy is doing now, and whether his language is ‘catching up’ with his peers. Love all your resource recommendations. All going on my 4 year olds Xmas list!

    • admin
      10th November 2023 / 9:31 am

      My son mentioned in this post is now just turned 8 and has lots more language, back and forth conversation is still not flowing but he is requesting and responding to questions and I see improvement every day. It is fascinating to watch how his communication and language has developed so differently to peers but is absolutely increasing day by day.

  6. C Ann Key
    20th November 2023 / 2:18 pm

    I am so grateful to have found your article. Reading this I felt shocked at how much of what you said seemed to be perfectly describing my 3 yr old son. I had not ever heard the word hyperlexia before, but I had decided to Google for help because I was beginning to feel people would think I’m crazy if I say I’m sure my son is reading, and has been for awhile, despite the fact he doesn’t talk to us. He is definitely speech delayed, however he has started saying certain words/phrases from his favorite songs or shows/books. He would probably live inside his books if he could. He’s been that way since he was able to sit up and flip the pages himself. He always amazes family members who he visits because he will go straight to their bookshelfs and it doesn’t matter if the book has pictures or not, he sits and flips through it page by page. His favorite part of the movies he watches has always been the credits. We used to rewind the credits of finding Nemo, frozen and secret life of pets repeatedly because he would want us to skip straight to them, or if you let him hold a tablet and play one of his movies he will skip all the way to the credits. He sleeps with his books, his all time favorite are Pete the cat. He will listen to the audiobook and grab the proper book to match and sit on the floor following along perfect timing page by page with the audiobook, he’s been doing this since before he was 2. I don’t show him a video,I can play just the audio for the book and he will go find the right book wherever it is and follow along, or he can skip to the correct page if he has already missed some of the reading. My husband and I haven’t been sure what to think, we’ve been told autism. However my son is very affectionate with us, he is definitely socially awkward or lacks social skills that other kids his age seem to have. He doesn’t seem interested in other kids, only his siblings. He has serious sensory issues, mostly with sounds. Loud sudden noises are what he reacts the worst to. If his siblings scream or anyone screams around him he can be sent into a full blown tantrum/meltdown. This has gotten a lot better now, we have learned things we can do to help him cope with noise when we are expecting it. This is where books going with us everywhere had began. He chews his shirts real bad, I was told that’s a sensory/stimulation thing. Not given much of a solution. We began giving him cloth rags and bibs which has helped keep him from chewing his shirt.

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