Chess Tests offers chessplayers material of very high quality for working on various themes, from training combinative vision to techniques of realizing advantages. The author recommends using those materials for in-depth work in the directions mentioned in the book. If you follow this advice, then this volume will become a valuable addition to your chess studies and will help you reinforce skills and knowledge you have already obtained.
And here is probably the most important point. Dvoretsky wanted to write a book that would not only teach some intricacies of chess, but would also be simply a pleasure to read for aficionados of the game, so he tried to amass the ‘tastiest’ of examples here.