Reddit reviews Theories of Counseling and Psychotherapy: Systems, Strategies, and Skills (4th Edition) (Merrill Counseling (Hardcover))

I don't know where you are in the world, but that is not typically how things work in the United States.

In the US, commonly licensable Master's degrees are Counseling, MFT, and Social Work. For all of these, you are trained as a generalist. That means you will work with a variety of populations and you will probably take some sort of "theories of counseling" class. Some programs will emphasize certain theories more than others-- e.g. some programs are VERY CBT heavy or VERY interpersonal psychotherapy heavy. Some may operate from slightly different perspectives (e.g. family systems theory for MFT). But any good program will teach you more than one thing and will have opportunities for you to explore theories that seem like a particularly good fit for you (hopefully-- sometimes it's hard if there is no one trained in a method as a professor or supervisor).

Some people do specialize. E.g. I know a clinician who only does EMDR. That's what she does and she doesn't take clients where either she or the client do not believe that this a fit. Most people, though, consider themselves either "eclectic" or "integrative", which means that they are utilizing multiple theories in their interventions. It is pretty uncommon for folks to operate from only one theoretical orientation.

With all of that said, my theories textbook was Theories of Counseling and Psychotherapy by Seligman and Reichenberg. -- https://www.amazon.com/Theories-Counseling-Psychotherapy-Strategies-Hardcover/dp/0132851709/ref=sr_1_3?keywords=theories+of+counseling&qid=1572576919&sr=8-3