Peterson's Official Guide to Mastering the DSST Exams helps nontraditional students earn college credits for life and learning experiences, with diagnostic tests, subject review, and post-tests (with detailed answer explanations) for each of the 8 most popular DSST exams: Ethics in America, Introduction to Computing, Principles of Supervision, Substance Abuse, Business Math, Principles of Public Speaking, Fundamentals of College Algebra, and Technical Writing. Peterson's Official Guide to Mastering the DSST Exams is the only prep guide endorsed by Prometric™, the DSST program provider, which found this study guide to be an excellent reflection of the content of the respective DSST tests.