One-o-saur, Two-o-saur is a simple counting text, from one to twelve. Simple rhyming text and the bright illustrations of Leonie Worthington show the dinosaurs doing simple things, some more dinosaurly than others. For example one-o-saur is seen hopping on one leg, whilst on the next page two-o-saurs are hatching from their eggs.

In-o-saur, Out-o-saur is a book of opposites with even simpler text (one word a page) and, again, the bright, humorous illustrations of Leonie Worthington. Each double page spread presents a pair of opposites – in-o-suar and out-o-saur; awake-o-suar and asleep-o-saur.

This is a cute pair which will appeal to the very young. First released in picturebook format in 2005, they have now been repackaged as sturdy boardbooks, suitable for toddler enjoyment.

In-o-saur, Out-o-saur and One-o-saur, Two-osaur, both by David Bedford & Leonie Worthington
Little Hare, First published 2005, this edition 2006