Paul Galloway, The Bud Weckesser book you are inquiring about was entitled "Dollars In your Mailbox." The Beginners Guide to Selling Information by Mail. Copyright 1984 by The Green Tree Press

There is also an earlier extremely similar book/manual by David Buckley entitled: How to Make a Fortune Writing and Selling Information by Mail, by Money Confidential, Copyright 1977. Both of these books are out of print. I have my own personal copies and you can e-mail me at for further details.

The early MO materials are simply the best! I have not seen any simple, updated or easy to understand Mail Order Info sales books/manuals since around 1980.
Good Luck.