Hi Night Owl,
I've had this book for years.
It's a very good book. It's full of good photographs of the dozens of techniques explained in the text. There are techniques to defend against many different types of attacks. The explanations of the techniques are thorough, and the text is well written.
My only caution - and IMO this applies to any book about any locking/throwing art like chin na, jujutsu or traditional hapkido - is that these arts really require a great deal of physical practice with experienced training partners. Getting physical feedback in learning to apply techniques that use jujitsu's yielding principle is the only way to truly understand how and why the techniques work.
Hope this helps...