This book aims to elucidate the intricacies of Royal Auction Bridge, a card game variant, with a particular focus on its 'Nullos' convention. Written by R. F. Foster, a presumed authority on card games, the text likely draws upon established bridge literature and practical play to explain the rules and strategies associated with this specific bidding system.

This book is presented as a facsimile reprint of a scarce antiquarian work, indicating its historical significance within the literature of card games. The publisher's note emphasizes its cultural importance and the effort to preserve and promote this older text through modern, high-quality editions. The focus on a specific variant like Royal Auction Bridge with Nullos suggests it caters to a niche audience of bridge enthusiasts interested in historical or specialized game mechanics.