Books open the door to a world of knowledge and imagination. Picture books make the experience doubly pleasurable – especially for small children.

As part of The Big Picture Campaign, The Rough Guide to Picture Books has highlighted 35 of the very best titles in order to celebrate the talented illustrators and authors who produce them.

The Rough Guide to Picture Books will be distributed free of charge through Waterstone's in April and May, and through Tesco throughout October. Look out for copies in stores near you.