Every book of this series contains 100 masterpieces from the golden treasury of chess lore, that are distinguished by bright, elegant, but not too complicated solutions. Irrespective of the genre Loyd's problems are characterized by difficult introductory play, clever and original combinations and as a rule light construction. Loyd introduced such forms as twins, graphic compositions, and retro-analysis problems. Many of the problems included here were published in columns on chess composition in various American magazines, and he was a prominent organiser of chess life in the USA in the late 19th century. The Platov Brothers were among the leading study composers in the world. The Platov brothers skilfully developed themes such as the battle of two pieces against a queen, luring black pieces onto key squares, and subtle aspects of rook endings. Amazingly beautiful stalemate combinations occur in their studies. A whole series of studies demonstrate tactical the abilities of specific pieces and also defense and attack procedures in the battle between various pieces. The Platov brothers' progress in study composition was combined with giving priority to the development of the combinative-positional trend. Richard Reti was a famous grandmaster and an outstanding theoretician and chess player. Jindrich Fritz a lawyer by profession, was a grandmaster of chess composition (1975) and an international arbiter (1956). Each book's text is in English, German, Russian and Spanish. The pocket-size makes these books essential for anyone who is serious about improving their game, at home or on the go.