Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This Book Cracks the Code

At last, there is a book that de-mystifies mogul skiing. Dan Diprio's book simplifies a rather complex form of skiing that plagued me for years. I must have taken 3 lessons on mogul skiing, and they were all a waste given that all 3 emphasized short radius turns (i.e., slalom carving) over and thru the bumps. What a waste of money and energy !!Dan has it right. DO NOT listen to those carving experts who wrongly think that carving skills on the groomed and hard pack apply on the bumps. Bumps require a far different skill most expert carvers lack or don't appreciate (e.g., less round turns and edging, steering the skis, reduced hip angulation, weighting both skiis equally, etc).Just returned from a Winter Park Colorado trip, and can now do moderate sized bumps on intermediate trails thanks to Dan's book.Thanks Dan for a well written book that is easy to understand and will allow skiiers to venture beyond the groomed !!