IT Magnet (as a hobby) and in industry (as manager of a production team), I found this very nice book. It is a good appetizer of what lean, for those who want to discover the world off the industrial context '. If computer literacy and operation of a SSII (Computer Society of Engineering Service) are prerequisites to more easily understand some of the issues addressed, the implementation of LEAN in itself is understandable naturally without the complicated jargon of works 'reference' (I read too ...). A funny book, which is more a testimony of the reference book, then, but that does the job: to make us understand the basic concepts applied to computers (and not industry) and its beneficial effects, and makes us laugh.