Professor Book is a national authority on tax procedure and issues affecting the low income taxpayer community. He has written extensively on the relationship of IRS agency actions and broader principles of administrative law, on the intersection of tax and poverty law, and on the tax gap. Recent articles have appeared in the Stanford Law & Policy Review, University of Wisconsin, University of Houston and American University Law Reviews, the Indiana Law Journal, as well as in Tax Notes. Working with the research office of the National Taxpayer Advocate, Professor Book has written two papers on the relationship between income tax return preparers and the tax gap. Professor Book, a frequent speaker and panelist at bar associations and public interest organizations, has testified before Congress and the Treasury Department on the fair administration of our nation's tax laws. He is the 2007 ABA Tax Section Spragens Pro Bono Award winner for his outstanding and sustained commitment to pro bono services with respect to federal tax law, and is a fellow of the American College of Tax Counsel.