The book includes all types of problems - orthodox, help- and selfmates, fairy chess etc. as well as endgame studies. In great detail and clearly arranged Encyclopedia explains all possible terms and themes used in chess composition. The books includes explanation of all possible terms - from elementary ones like Twomover or Helpmate, through more complicated ones like Old German School or Economy to special terms like Progressive Twins, Half-Ambush Theme etc. Particular entries are arranged alphabetically, always well explained and accompanied with 1726 examples of problems and endgame studies with solutions. Several indexes at the end. Uri Avner, Honorary presindet of the WFCC, writes in the foreword: It is a must in the library of all lovers of chess problems and studies.