James Opie is the toy soldier consultant to Bonham's auctioneers and recognized as one of the world's leading experts on the subject. He has a very significant collection of his own, which he has been building since childhood. For over a quarter of a century, until his recent retirement, James Opie was also editor and buyer for the Military and Aviation Book Society and various other book clubs. He has written seven previous books on various aspects of toy soldier collecting.