
Sales Mastery
The Playbook for Phone Sales Closers
Michael G. Williams(Author)
Sales Mastery (Publisher)
Published on 6. February 2026
Book
Paperback/Softback
202 pages
979-8-9944313-0-6 (ISBN)
More details
Series
Language
English
Publishing group
Sales Mastery HQ
Dimensions
Height: 229 mm
Width: 152 mm
Thickness: 11 mm
Weight
301 gr
ISBN-13
979-8-9944313-0-6 (9798994431306)
Schweitzer Classification
Person
Michael G. Williams is a Global Sales Executive with over 35 years of experience scaling B2C, D2C, and B2B sales organizations. He has driven company valuations from $25M to $250M+, scaled phone sales by 268%, and trained hundreds of sales representatives. Williams founded MASA University, a sales training program that improved rep performance by 35%. He holds multiple AI for Sales certifications and is a licensed Florida 2-15 Health & Life agent. He is the founder of Sales Mastery HQ.