William is older than you specified but he has a functioning age of 21-24 months as he is autistic so this is what he enjoys.
Dig, Dig, Digging. A great book and available in board book format now.
Dear Zoo and pretty much everything by that author. He also loves - Oh Dear, Our Jungle, My Presents, Dear Santa, It's Mine, I'm Hungry and Buster's Zoo all by Rod Campbell.
This Mr Men book set:
https://www.amazon.co.uk/Mr-Men-Rea...id=1381320061&sr=8-3&keywords=mr+men+book+set
He got it for his first Christmas and it has been so loved. The Mr Tickle book is wrecked from being read so much.
The Thomas and Friends series of board books - shapes, weather, numbers etc
Peepo
The Very Hungry Caterpillar
Where's Spot (or any Spot book really)
Each Peach, Pear, Plum
That's not my..... books
Busy books like this:
https://www.amazon.co.uk/Busy-Books...8&qid=1381320232&sr=8-19&keywords=board+books
They fall apart quickly though even when a child is gentle. Expect to be sticking them back together within a month. They are only £3 though and he loves them so they are worth it for us. They do a whole series of them.
These books of nursery rhymes are lovely as well
https://www.amazon.co.uk/Ten-Sausag...d=1381320335&sr=8-1&keywords=ten+fat+sausages
As are these fairy tale ones
https://www.amazon.co.uk/Goldilocks...r=8-5&keywords=goldilocks+and+the+three+bears
