Three picture books deal with the nature of identity and self-discovery in funky, surreal style, with visual games to access the more serious underlying messages. Tiny by Paul Rogers and Korky Paul (Bodley Head pound;9.99) is about a flea which discovers the benefits of being small. In The Adventures of a Nose by Viviane Schwarz, illustrated by Joel Stewart (Walker Books pound;10.99), a nose, trying to escape its essential character, embarks on an adventure. In Beetle Boy, Lawrence David’s variation on Kafka’s The Fly, illustrated by Delphine Durand (Bloomsbury Children’s Books pound;4.99), Gregory Sampson’s parents and teachers are too busy to notice when he turns into a beetle, but his friend Michael does.