I have been drawing for going on 50 years; Bridgman's Complete Guide to Drawing From Life is one of those books that was always around when I was growing up and learning to draw. I turned to this work (and many others) for reference often when I was young. Recently I purchased a new copy of this book from Amazon.com just to have in my collection of drawing resource material (and, I suppose, for a bit of nostalgia). The reproductions of Bridgman's demonstrative drawings in these newer editions are surprisingly poor I think, sometimes washed out and faded, all too often very muddled or blotchy... the same effect one would see if you used a low quality copy machine to make a copy of a copy of a copy of a pencil sketch... the publishers are obviously keeping in print a long established favorite that they know will sell and are not overly concerned with putting out a quality product. So, look for a vintage edition if you must have this book... I could not see using these current editions as a quality learning or teaching tool.
From a more subjective point of view, Bridgman has never quite impressed me for learning life/figure drawing... personally I just never quite warmed up to his style. The text is appropraite to the illustrations in terms of the mechanics of the body and naming the parts that do the work, but there is little to nothing by way of drawing theory/technique, elements of what makes a successful drawing work... Bridgeman rightfully focuses in breaking down the human body as simplified shapes... although in Bridgman's drawings simplified shapes appear rather grotesque distortions. On pages 212/213 where he describes how to draw an armpit... well, I'm looking at it right now and... well... frankly it's a mess. If you want to learn to draw the various parts of the human form as architectural moulding, block and tackle, wedges and fulcrum, etc., this is the book for you. If you want to learn how to make a realistic anatomically correct figure drawing jump off the page through line quality, contour, compostion, perspective, light and shadow, subtlety, etc., seek elsewhere.
The extremely brief breakdown of facial expression is sad (pun intended).
There is a nice section on 'draping', how cloth folds, hangs, bunches and masses, but the reproduced images are poor to the point of being near useless in these editions.
The question of learning/knowing human anatomy so that one may render it believably in a artistic sense is best covered, I believe, elsewhere. But depending on your artistic goals, level of experience, interest and commitment, this might be a good book for you; just make sure you get an edition where you can actually make out what the good Mr. Bridgman is trying to show you.