- PassKey EA Review Complete: Individuals, Businesses and Representation: IRS Enrolled Agent Exam Study Guide 2011-2012 Edition
- Passkey EA Review, Part 1: Individuals IRS Enrolled Agent Exam Study Guide 2013-2014 Edition
- Passkey EA Review Workbook, Three Complete Enrolled Agent Practice Exams 2011-2012 Edition
- Passkey EA Review Workbook: Three Complete Enrolled Agent Practice Exams 2012-2013 Edition
- Passkey EA Review, Part 2: Businesses, IRS Enrolled Agent Exam Study Guide 2012-2013 Edition