By far the best book on the Japanese version of mahjong is Eleanor Noss Whitney’s A Mah Jong Handbook. It has an excellent section on strategy, which is divided into three chapters, namely, ”Luck and Skill”, ”Offensive Strategy”, and ”Defensive Strategy”.
The two chapters on strategy in this section cover these topics: Arrangement of the hand; elements of a hand; looking ahead; ”making ready” (”Tenpai”) techniques; improving a ”ready” hand; declaring ”ready” (”Riichi”); melding (”Pon”); discarding; watching the other players; counting tiles; danger signs; opposing particular players; deduction and psychology.