The author has a long photographic experience and a long track record as a writer of photo books. The book is packed generously with more than 500 pages, almost all images are in color, page layout clearly. The Nikon D300s is fully described, in particular, lays great emphasis on the author in addition to the pure operation of D300s also to explain the reasons: Where and when are certain settings make sense. Photograph basic knowledge is required, a complete novice in digital SLR photography should look for further reading. The English is liquid and sufficiently easy to understand for my circumstances. With approximately EUR 21, - the book is inexpensive.