BUYERS BEWARE - COUNTERFEIT COPIES OF The Pipe Fitters Blue Book are being sold on AMAZON. The ONLY authorized sellers of The Pipe Fitters Blue Book by WV Graves are; - Amazon.com - Graves Publishing Company (pipefitterbluebook) - thegangbox and - RG Sellers ALL other sellers are not authorized sellers and have a high probability of being a counterfeit copy. The counterfeit copies are poor quality replications that fall apart after minimal use and do not reflect the quality and integrity that we provide with Graves Publishing Company.