This book analyzes the various economic and marketing strategies utilized by the five major STM commercial scholarly journal publishers since 2000. This period has witnessed tremendous economic, marketing, and technological growth including the migration from a print only to a hybrid publishing format. With this growth, the industry has also seen the rise of open access publishing, copyright challenges by websites such as Sci-Hub, the emergence of sharing platforms such as ResearchGate and Academia.edu, as well as the impact of Plan S on publishers, universities, and authors.