
"Tested Advertising" Caples (4th edition or earlier only)
"How I Raised Myself from a Failure to Success in Selling" Betger
"How to Write a Good Advertisement" Schwab.
"How to Write Sales Letters That Sell" Drayton Bird
"The Robert Collier Letter Book" - by Robert Collier
"Tested Advertising Methods" -by John Caples
"The Lazy Man's Way to Riches" - by Joe Karbo
"Break-Through Advertising" - by Eugene M. Schwartz
"Advertising Secrets of The Written Word" by Joe Sugarman
"Making Ads Pay" by John Caples
"Web Copy That Sells" by Maria Veloso
"The Architecture of Persuasion" by Michael Masterson
"Influence The Psychology of Persuasion" by Robert Cialdini
"The Adweek Copywriting Handbook" by Joe Sugarman
"The Elements of Copywriting" by Gary Blake and Robert Bly
"The Ultimate Sales Letter" by Dan Kennedy
"Cashvertising" by Drew Eric Whitman
"Write to sell " it is written by Andy Maslen
"Influencing Human Behaviour" by H.A.
"Tested Sentences That Sell" by Elmer Wheeler
"Unlimited Selling Power" by Moine and Lloyd.
"Writing for Emotional Impact" by Karl Iglesias
Bob Bly's "The Copywriter's Handbook"
"How To Make Your Advertising Make Money" - John Caples
"The Copywriters Handbook" - Bob Bly
"The Adweek Copywriting Handbook" - Joseph Sugarman
"Sales Letters That Sizzle" - Herschell Gordon Lewis
"Cash Copy" - Jeffrey Lant
"Magic Words That Bring You Riches" - Ted Nicholas
"Ogilvy On Advertising"
"Method Marketing" by Denny Hatch.
"My First 50 Years in Advertising" by Maxwell Sackheim.
"The Greatest Direct Mail Sales Letters of all Time" by Richard Hodgson.
"How To Write Advertising That Sells" by Clyde Bedell
"Ads That Sell" by Bob Bly
"Advertising Headlines That Make You Rich" -- David Garfinkle
"Magic Words" -- Ted Nicholas
"Robert Collier Letter Book" -- Robert Collier
"My Life In Advertising" -- Claude Hopkins
"Bird" - Commonsense
"The First Hundred Million" by E. Haldeman-Julius
David Ogilvy's "Blood, Brains and Beer"
"Confessions of an advertising man"
"Million Dollar Mailings" by Denison Hatch
"The Wizard of Ads" trilogy by Roy H. Williams
"Making Ads Pay" by John Caples
Buy a book of control salesletters. ("Control" is an industry jargon which means that its a salesletter that has won in split tests with other versions of salesletters selling the same product.)
Then copy and write the salesletters down by hand. Because copywriting is essentially writing. You can read everything about it and yet be a so-so copywriter. Or you can just copy 30 or so control salesletters and learn more than you would by reading voraciously on the topic.
My swipe file book of control salesletters of choice is World's Greatest Direct Mail Sales Letters by Herschell Gordon Lewis. But its out of print. And second hand copies sell for $200-300 or so.
Another good and more affordable book of control salesletters is: Million Dollar Mailings by Denny Hatch
You can really see this if you look at the history of direct mail, some of the best performing mailers ever were pretty ugly. (source: http://www.amazon.com/Million-Dollar-Mailings-Dension-Hatch/...)
