Looking for ideas for the above please! DS is 5 (will be nearly 6 at Christmas) and I had already got him an animal biology book for Christmas, but once it arrived I realised it was too old for him so saving it for a few years' time.
Open to any and all ideas, no particular genre as he enjoys learning about pretty much everything - non-fiction books that he has enjoyed before include an ocean animal atlas and a dinosaur encyclopaedia.
Thanks all!