This book is a MUST for those interested in this area of knowledge. Written by 2 authorities, it is well organized, easy to read, and with a deep treatment of this subject, which is both a developing area in sports and one of the most difficult to find sources for learning. Well organized, it starts with some introductory chapters, where the theory behind this subject is outlines, together with the starting blocks to build any system for almost any sport. Then it follows a series of chapters where planning, developing and designing notationaal analysis are learned with practical "real life" examples for most sports. The authors describe very well the different types of notational analysis systems (hand, computer, video systems) with pros and cons of each one. The book is full of examples. Its only drawback is that in dealing with dessigning computer systems, they are based in old software, mostly BASIC language. After (and while) reading it one can find it is a full source of practical knowledge, most of the ideas are ready to use in most cases, and the reader will learn all what is necessary to develop notational analysis. One can only feel proud for buying it. For all interested in the science of notational analysis this is definitevely a Bible