By Furakawa Akihiko/Cho Seokbin, English, 179 p.
This book consists of over 1000 carefully selected problems covering life and death situations (18k to 1d), as well as various tesuji. These are divided up by theme and level, and are essential for kyu players aiming for the coveted 1-dan rank. This same collect of problems is used in a famous Go school in Japan whose students include professional players, so they are well-tested and proven to help you improve your skills. If you would like to become 1dan, you must have it!