The Observer's Books are a series of small, pocket-sized books, published by Frederick Warne & Co in the United Kingdom from 1937 to 2003. They covered topics such as hobbies, art, history and wildlife. Intended for children, the aim of these books was to interest the observer. Some of them have become collector's items. For the dedicated collector this could be a lifetime's work as there are over 800 variations, some of which are now rare. 

9.5cm x 14.5cm