Bending, namely quick punches, is an applied attack technique in Taijiquan. It is of great practical value.This book is Volume IV of Research on Taijiquan series and focuses on the application of Taijiquan.The demonstration movements of Wu Tunan-a famous Taijiquan master in modern times are attached with pithy and detailed explanation of punch momentums and training methods especially designated for difficulties of learners. It also explains the exquisite and delicate points in Taijiquan training.