The original version of this book contained holograms from the vendors and many of them are no longer in business. Therefore this version of the book contains everything that was in the original version but it has no holograms.The world's most comprehensive and up-to-date book about the holography industry.The hologram on the cover of the 6th edition of the Holography MarketPlace is unquestionably one of the best embossed holograms available. It was done to demonstrate the three types of items that you can put in a embossed hologram. These are flat images, Computer Generated Holograms (CGH) and Video.