I am an absolute beginner at cross country and have no downhill experience. Through a stroke of good luck my second lesson was from Paul Petersen, one of the authors of this book. His ability to teach is extraordinary and his enthusiasm is contagious. Those qualities are evident in the pages of the book. It is perfect for me because I can use the book to review everything he taught. Other reviewers question the book's usefulness for the non-beginner; I don't have the expertise to comment on that, but if you are just learning this awesome sport I think this book should be required reading.