Professor William Byrnes, an Associate Dean of Texas A&M University School of Law, is "one of the leading authors and best-selling authors in the professional markets"​ according to Richard Kravitz of National Underwriter, with 30 books that have sold in excess of 100,000 copies in print and with in excess of 1,000 online firm, corporate and government subscriptions. His media articles attract over 100,000 annual readers, appearing in the press and blogs (e.g. LifeHealthPro, ThinkAdvisor, International Financial Professor Blog and Kluwer International Tax Blog). He is quoted by financial media such as the WSJ, Dow Jones' Market Watch, Financial Times, and consumer media such as USA Today.

“In the field of international tax, Prof. William Byrnes is among LexisNexis’s best-selling authors and a leading authority in the fields of anti-money laundering and FATCA compliance.” Ray Camiscioli, Esq., Director, Product Strategy & Development for Tax, Accounting and Estates/Elder Law, LexisNexis, Inc. In 2015, the FATCA Compliance Guide reached #2 for print/digital revenue for Lexis. William Byrnes served in senior positions of international tax (transfer pricing) for Coopers & Lybrand.

After peer review, the Fulbright Foreign Scholarship Board (FFSB) and the U.S. Department of State’s Bureau of Education and Cultural Affairs (ECA) selected him for the 2013-2018 Fulbright Specialist Roster for the areas of comparative law and for taxation. India’s National Board of Accreditation bestowed its 2012 Education Leadership Award on Professor William Byrnes, stating: “Professor William Byrnes’ leadership and contribution to the field of education is well known.”

William Byrnes pioneered online legal education. "Perhaps no one in legal academia has more experience with online master’s degrees than William Byrnes... ” (The National Law Journal, May 20, 2013).