This is really a super short and brief book that provides you with information on Trace Evidence. Maybe about 100 pages long with a few chapters you could generally learn all of this in one lecture. The book first goes over what evidence is and a few examples of it. Then it shifts to the instruments and items used to run tests on the trace evidence collected. The last two chapters are all about Hair and Fibers, which is what I found most useful. Still very brief and nothing in depth, but if you want a quick read then grab it. Most of this stuff is not complicated to read and I see it more as a preparation for when you want to learn to more complicated topics.