First, let me point out I have many Michael Freeman's books. In fact, "Light & Lightning EXPERT" work (http://www.amazon.com/Light-Lighting-Digital-Photography-Expert/dp/1904705219/ref=sr_1_8?ie=UTF8&qid=1351797495&sr=8-8&keywords=the+digital+photography+expert+freeman) put me on the right path when I decided to take photography seriously around 2006.
Now, this book is, as the title says, a DIGITAL photography manual. It won't teach you B&W principals nor B&W photo theory. This is a book to handle B&W shots on a PC, i.e. converting color files to B&W. BUT as such, it's a seriously outdated book. It deals with Photoshop Channel Mixer mostly, which was the best available conversion method until PS CS3 if I remember correctly. In later versions Adobe came out with the straight BLACK & WHITE conversion command, which covers about all the previous methods. That only consideration makes this book totally obsolete. On the worse side, this book features dismal coverage of important theories (only 2 pages to the zoning system, followed by a two-pages lesson. That, like filters, tonal contrast and other subjects are better covered in other books.)
This book needs a big update. As it stands, it is no more than a text book curiosity and ought to be taken out from the catalog.