In his new book, "The Future of 3D Media, Bringing Stereoscopic 3D to Consumers", Keith Fredericks manages to give a good, general overview of 3D displays without having to delve into the overly technical or the arcane.  Mr. Fredericks makes a strong case that 3D in the home, whether by traditional cable TV or via the internet, will not become popular until glasses free displays with acceptable quality become commonplace, which he argues is not that far off.   While it's not a technical primer or text, this book is a good read for anyone who wants to get a better, general understanding of 3D displays and content.