Elementary go series vol 3; Tesuji. Taktiek
K12 Tesuji, Davies
Elementary go series vol 3; Tesuji.
Tesujis are the tactics of fighting on the smallest scale. Here are over 300 examples and problems aimed at training the reader to spot the right move in any situation.
The elementary go series K10- k15: contains the basic knowlegde that should bring you to shodan. All volumes of this series have had several reprints, because succesive generations of go players have recommended these books to their friends and pupils.