Bloomberg BNA Tax Management PortfoliosA comprehensive practitioner-focused collection of 300 "portfolios" on a wide variety of tax issues. Each portfolio contains an in-depth analysis of the applicable law, practice documents, and sample forms. Portfolios are also available covering state tax issues and foreign taxes for the larger economies.
IRS Practice and Procedure by Michael I. SaltzmanTreatise explaining and analyzing the procedures followed by the IRS to ensure tax compliance. Also covers administrative practice, including requests for letter rulings, examinations, and the appeals process.