Gregory Kipper 
Investigator’s Guide to Steganography [PDF ebook] 

The Investigator’s Guide to Steganography provides a comprehensive look at this unique form of hidden communication from its beginnings to modern uses. It begins by exploring the past; providing insight into how this steganography began and evolved from ancient times to present day. It continues with an in-depth look at the workings of digital steganography and watermarking methods, available tools on the Internet, and the companies who are providing cutting edge steganography and watermarking services. The third section outlines real world uses of steganography. The book concludes by reviewing steganography detection methods and what can be expected in the future.