The book is not a dictionary but a selection of basic opening knowledge, problems, and case studies. The basic opening knowledge is presented similarly to Opening Theory Made Easy, suitable mostly for beginners, and very helpful in that respect. The next chapter has short discussions of 10 A or B problem positions, the third provides 12 case studies of representative openings. Both chapters contain quite some useful details but lack a general structure. Chapter four discusses the merits of a few popular opening patterns in the style of a joseki dictionary. 10 scattered problems fill the remaining pages. To summarize, the book is a mixture of useful and superfluous parts. Everybody from 13k to 5d can learn at least something from it.