In my Introduction to Sociology class, the professor found herself dryly stating that "no, this isn't an applied psychology class, this is a sociology class. Different subjects." And yet, people kept conflating the two as if they were synonymous. Since then, I have taken a few classes on sociology, but I am not an expert by any means.
This book is an introduction to sociology, told in such a way that is easier to grasp for a beginner. Lemert, a now-retired professor of sociology, uses his own life examples to explain both the history of sociology as well as key sociological concepts.
One of the things that I really enjoy about sociology is that it gives one the tools to understand a collective group, and how such a collective forms in the first place. It explains larger structures of society, but also allows one to reflect on how these overarching structures dictate even the smallest things in our lives that we believe we have control over.
I did enjoy Lemert's book, though I wish he would've gone into more depth at times. Overall, it's a fine introduction and was very useful.