In its fourth incarnation, Learning preserves its well-balanced academic rigor and accessibility. Klein continues to present a thorough coverage of both classic and current studies of animal and human research. Of particular interest are the recent findings of leading psychologists investigating animal learning. New pedagogical elements lead students through the logical processing of information. And the reorganization of chapter coverage and order allows instructors more options in planning their course.
A very good survey analysis of learning theories in human and non-human animals. LP&A is deceptively short at 400 pages of material in the 7th edition, but was probably one of the densest textbooks I've worked with and this is more a reflection of Klein than the material. There's a lot of graphs, references to hundreds of experiments and lots and lots of jargon (which you get used to).
It's certainly very comprehensive, more so than any other textbook I've seen – Klein earns 3 stars for that. I do hope there's more of an effort to make working through it less dry in the next edition (though with the pitch of "An easy-to-read overview of basic learning processes." on the cover, I somehow doubt it).