| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Book of Ages 30 | 978-1-4000-5013-0 (1-4000-5013-8) | 2003 | Lockhart Steele · Joshua Albertson |
| The Big 40!: Are You Ready to Face . . .The Best Age Ever | 978-1-4000-5014-7 (1-4000-5014-6) | 2004 | Joshua Albertson · Lockhart Steele |