practicing various sports including weight training and cardio training, I am interested very quickly to go indoors because KB was becoming complicated (remoteness, work & kids!). So buy kettlebell (8 and 12 kg for a start) and I started to practice by following the advice in this book is remarkable, coupled with a cardio program (elliptical bike). the different movements are very well explained, with photos J.Lebanner very explicit. programs are diverse and effective. So we gain in time and efficiency (5kg weight loss in 2 months without any special dietary diet!) And functional body contouring! bravo for this book! A second book devoted to training programs would, without doubt, the same success!