This book offers a straightforward way for white to obtain an advantage against the obscure looking Gunderam Defence (1.e4 e5 2. Nf3 Qe7?!).
You think this opening will never occur above beginner level? Well, Maxime Vachier Lagrave, Michael Adams, Nigel Short and other GMs have faced this in classical games over the board from opponents well above 2300!
Learn some theory on how to combat this surprise weapon for free!