This will be our companies 2nd purchase of the handbooks “An Audit of the System, not of the People”. We are a AS9100 and ISO 13485 Certified company that lives and dies by regulatory and statutory requirements. These pocket guides are worth their weight in gold. Not only are the Pocket Guides compact, but they take what I would call a very wordy requirement and break it down into an easy to read format. Great product and a must have in my book!