Little Roo and the Big Wide World by Guido van Genechten
This is a gorgeous, funny picture book for all children who find it hard to let go of their mummy's hand. (And for all their mums, who find it hard to let go, too.) Little Roo says she's never going to leave her mummy's pocket, but she's getting far too big to be carried. So Mummy Kangaroo takes her hoppity-hoppity-hoppity, all round the big wide world, until Little Roo can't wait to go exploring by herself.