Start with high-confidence telemarketing books, then narrow by subgenre or adjacent topics.
Sales Management. Simplified.
Mike Weinberg
Fanatical Prospecting
Jeb Blount, Mike Weinberg
Sales EQ
Jeb Blount, Anthony Iannarino
Pick Up the Phone and Sell
Alex Goldfayn
The Linkedin Edge
Jeb Blount, Brynne Tillman
Unreceptive
Tom Stanfill, Tom Parks
Let's Get Real or Let's Not Play
Mahan Khalsa, Randy Illig
The Challenger Sale
Matthew Dixon, Brent Adamson
To Sell Is Human
Daniel H. Pink
The New Model of Selling
Jerry Acuff, Jeremy Miner
Winning at Sales
Taylor A. Welch