Jeff Bewkes Lashes Out at AT&T in Coming Book

AT&T Inc. committed malpractice in its stewardship of Time Warner, according to the man who led the sale of the parent of HBO, Warner Bros. and CNN to the telecommunications giant.

In a coming James Andrew Miller book about HBO, Jeff Bewkes, the then-chief executive of Time Warner who engineered the 2016 deal to sell the entertainment giant to AT&T for $85 billion, pulls no punches in his claims about how his successors managed the company. The book—“Tinderbox: HBO’s Ruthless Pursuit of New Frontiers”—is an oral history of the premium channel from its inception to present day, and is set to be released on Nov. 23. Mr. Miller conducted 757 interviews with more than 600 people for the book.