This is a new paperback edition of this charming title in the popular and expanding "Usborne Picture Books" series, which introduces very young children to key subjects in a friendly and informative way. This is a story with lots of gently presented information, beginning with child characters exploring the treasures the tide leaves behind on a seashore. It focuses on the miniature world of sealife contained in a rockpool. The story sinks from the children's eye view into the rockpool to follow the adventures of a hermit crab, who changes his shell for a bigger one. The bright, inviting illustrations evoke all the magic and wonder of discovery on a seashore, while the simple accompanying text both engages and informs with a lyrical tone that makes the book delightful to read aloud.