The book, which is printed in DIN A4, explains with a lot of coloured images all about impressioning in over 100 pages for the beginner and also the expert. Years of experience gives you an deep insight into the topic in the high art of impressioning, the master discipline of opening techniques. Fascinating SEM pictures give a complete new visual experience. Step by step instructions with a lot of detailed pictures guide the reader through all important points related to the topic. Visual control gives the user the opportunity to avoid mistakes right from the start. Even the beginner has immedeate success if following the clear instructions. A "must have" for the ambitious user. All kinds of locking systems are covered starting with standard pin tumbler systems up to chubb locks and also dimple locks and laser track automotive locks.