In its examination of biochemistry, this second edition of the text includes expositions of major research techniques through the "Tools of Biochemistry", and a presentation of concepts through description of the experimental bases for those concepts.
Really rather dry, though packed with useful information, if you're into that sort of thing. Makes a great paper weight and is useful to find the structure and function of things like glycosaminoglycans - just in case you needed to know. The accompanying CD is a must have!