Buy this book, and when you can stop drooling at the pictures, call me and we will talk.
Gorgeous pictures, worth the cost of the book by themselves. A wide ranging course of study on the basics of the Amber trade and a comprehensive scientific primer on the nature of Amber, are a wonderful bonus.
The book also includes several methods for determining if what you have is real or synthetic Amber, as well as a solid discussion of the various types of fakes that are on the market, and how to spot them.
I sell Amber and Jet, both of which are fossil "gemstones" and I always recommend this book to my customers. A well informed customer is the best way to keep honest merchants in business, since they are unlikely to pass up quality work in favor of the "bargain" that is really a fake.
I recomend the book "Jet Jewelry and Ornaments" by Helen Muller for a similar overview on Jet. I can also recommend the Dorling and Kimberly (DK Books) Gemstone book for an overview of gemstones in general.