Written in 'Scientific' language and using old fashioned and very formal words, the book is rather heavy going for the first two chapters. It is really worth hanging in there and reading it with a dictionary by your side. The usual and well-documented cue-response-reward conditioning sequence is explored and explained in great depth. Timing, associations and confusions are examined and explaine in detail, leaving the reader invigorated and empowered to communicate with greater clarity and much more subtlety than before - regardless of how good you may have thought yourself beforehand. The book is slightly humbling as it points out errors most people make, but anyone reading this book will become a better horse person for it.