- Passkey EA Review, Part 1: Individuals IRS Enrolled Agent Exam Study Guide 2015-2016 Edition
- Passkey EA Review Workbook: Six Complete Enrolled Agent Practice Exams, 2015-2016 Edition
- Passkey EA Review Complete: Individuals, Businesses, and Representation: IRS Enrolled Agent Exam Study Guide 2015-2016 Edition
- Passkey EA Review, Part 2: Businesses, IRS Enrolled Agent Exam Study Guide 2014-2015 Edition
- Passkey EA Review Complete: Individuals, Businesses, and Representation: IRS Enrolled Agent Exam Study Guide 2014-2015 Edition