The Top 100 VAM Varieties by Michael Fey and Jeff Oxman is a lightweight and compact "pocket" format book. It is packed with new and useful information in a simple, easy-to-use format that will allow you to identify the rarest most desirable Morgan dollar varieties so that you can make decisions. The book will not attract attention when inspecting coins at shows, coin stores, auction, viewing or anywhere else you may choose to use it. Your very first find will most likely pay for the cost of the book.