Ok, so Encyclopedia of Rainbows by Julie Seabrook Ream (Chronicle, RRP £11.99) is more of a coffee table tome than a children’s book, but it would enhance a rainbow-themed nursery and will appeal to small people who love collections (isn’t that all of them?) It’s essentially a selection of photographs of items arranged by colour, which sounds simple, but looks amazing. The book is divided into two sections: The Natural World and The Built World. The first includes things like butterflies, feathers, leaves, shells, crystals, vegetables and various flowers, while the second features pretty much everything, from books and buttons, via pasta and pencils, to telephones and tools. Each photograph has a key with details of the individual objects, so it’s educational as well – a great social history resource. A gloriously technicolour gift for a design lover.