Leslie Book is nonresident fellow at the Urban-Brookings Tax Policy Center and Villanova Law's inaugural John H. Buhsmer Esq. '84 Endowed Professor of Law. While at Villanova, he has served as director of the Federal Tax Clinic, director of the Graduate Tax Program and director of the Online Graduate Tax Program. He also served as a Professor in Residence with the IRS, Taxpayer Advocate Service in 2019. 

Book is a national authority on tax procedure and tax administration. He has testified before Congress on the fair administration of our nation’s tax laws and on the future of tax administration.  In 2007 he won the ABA Tax Section Janet Spragens Pro Bono Award. 

Book received his BA from Franklin & Marshall College (magna cum laude), his JD from Stanford University School of Law, and his LLM (Taxation) from New York University School of Law.