Not only are the two books are interesting as they explain many ingenious inventions from the past but can also be used as a quiz "Guess the gadget". The flap on the inside cover folds over the text describing the item and the reader can endevour to guess what the artefact was used for - enjoy!

David and Charles books are available from all good bookshops; alternatively you can contact our Orderline on (0)1626 334555, or write to us at FREEPOST EX2 1 10, David & Charles Direct, Newton Abbot, TQ12 4ZZ (no stamp required UK mainland)