| title | ISBN-13 | year of publica-
tion | other author(s) |
|---|
| Passkey EA Exam Review Workbook | 978-1-935664-05-5 | 2010 | Christy Pinheiro |
| PassKey EA Review Complete: Individuals, Businesses and Representation: IRS Enrolled Agent Exam Study Guide 2011-2012 Edition | 978-1-935664-08-6 | 2011 | " |
| PassKey EA Review Complete: Individuals, Businesses and Representation: IRS Enrolled Agent Exam Study Guide 2012-2013 Edition | 978-1-935664-14-7 | 2012 | Christy Pinheiro · Richard Gramkow |
| PassKey EA Review, Complete: Individuals, Businesses and Representation: IRS Enrolled Agent Exam Study Guide, 2013-2014 Edition | 978-1-935664-21-5 | 2013 | Christy Pinheiro · Richard Gramkow |
| PassKey EA Review Complete: Individuals, Businesses, and Representation: IRS Enrolled Agent Exam Study Guide 2014-2015 Edition | 978-1-935664-29-1 | 2014 | Richard Gramkow · Christy Pinheiro · David V Sherwood |
| PassKey EA Review Part 1: Individuals: IRS Enrolled Agent Study Guide 2012-2013 Edition | 978-1-935664-15-4 | 2012 | Richard Gramkow · Christy Pinheiro |
| PassKey EA Review Part 2: Businesses: IRS Enrolled Agent Exam Study Guide 2012-2013 Edition | 978-1-935664-16-1 | 2012 | Richard Gramkow · Christy Pinheiro |
| PassKey EA Review, Part 2: Businesses: IRS Enrolled Agent Exam Study Guide 2014-2015 Edition | 978-1-935664-31-4 | 2014 | David V. Sherwood · Richard Gramkow · Christy Pinheiro |
| PassKey EA Review Part 3: Representation: IRS Enrolled Agent Exam Study Guide 2012-2013 Edition | 978-1-935664-17-8 | 2012 | Christy Pinheiro · Richard Gramkow |
| PassKey EA Review Workbook: Six Complete Enrolled Agent Practice Exams 2013-2014 Edition | 978-1-935664-25-3 | 2013 | Christy Pinheiro · Richard Gramkow |
| PassKey EA Review Workbook: Six Complete IRS Enrolled Agent Practice Exams: 2014-2015 Edition | 978-1-935664-33-8 | 2014 | Christy Pinheiro · David V. Sherwood · Richard Gramkow |
| PassKey EA Review Workbook, Three Complete Enrolled Agent Practice Exams 2011-2012 Edition | 978-1-935664-12-3 | 2011 | Christy Pinheiro |
| PassKey EA Review Workbook, Three Complete Enrolled Agent Practice Exams 2012-2013 Edition | 978-1-935664-18-5 | 2012 | Richard Gramkow · Christy Pinheiro |