Hmm I'm looking for an algebra/trig book, curious, that looks more like a book for memorizing stuff than for understanding things? 128 pages seem to little for those three subjects.
There are better explanations out there, but don't judge it on page count alone. It's a compact, to the point, and no-fluff exposition. That's definitely a quality by itself. I've used it with success to teach a young man who for reasons could not attend high school.
EDIT: Exercise problems are good and with answers to all, and full solutions to some.
