1. Bayan, Richard Words that Sell (Contemporary Books: 1984)
ISBN # 0808247992
2. Floyd, Elaine Marketing with Newsletters (Newsletter Resources: 1997)
3. Godin, Seth Permission Marketing (Simon & Schuster: 1990)
4. Caples, John Tested Advertising Methods (Prentice-Hall: 1974) ISBN #013244609X
5. Harding, Ford Rain Making: The Professional's Guide to Attracting New Clients (Bob Adams:1994) ISBN #1558504206
6. Kobs, Jim Profitable Direct Marketing Methods (Prentice-Hall: 1974)
ISBN # 0844230375
7. Kotler, Philip Marketing Management (Prentice-Hall:1984)
ISBN # 0844230375
8. Ries, Al and Jack Trout Positioning: The Battle for Your Mind (Warner Books: 1986)
ISBN #0071373586
9. Olgilvy, David Olgilvy on Advertising (Vintage Books; 1983)
ISBN # 039472903X
10. Bly, Robert Selling Your Services (Henry Holt: 1991) ISBN # 0805020411
11. Vosburgh, Bob LIFT: Leadership That Soars Above and Beyond (9g Enterprises, LLC: April 2002) ISBN # 0805020411