This book has a magnificent and durable case bound hard cover. Over 500 high gloss pages - our biggest safe book ever. Each page is numbered and labeled by month and year for easy reference. Dave has written an extensive index, which categorizes each safe by manufacturer and type, and lists the corresponding page numbers and month/year. This is an indispensable aid to the technician who needs to locate information now. Where appropriate, he has written Retrospective Comments at the end of the articles. These are sometimes information loaded, sometimes humorous, but always worth while.