India, Sept. 23 -- Portfolio, an imprint of the Penguin Publishing Group, is pleased to announce the launch of a new imprint, joining its eponymous Portfolio and its Sentinel publishing programs.This new line, Thesis, will be led by Bria Sandford, editorial director of Sentinel, and Niki Papadopoulos, editor-in-chief of Portfolio. Adrian Zackheim will serve as Publisher. Helen Healey will also rejoin the company as Editor to acquire for Thesis, Sentinel, and Portfolio.Thesis will be dedicated to publishing urgent idea-driven nonfiction by thought leaders, journalists, and experts with a strong point of view. The inaugural list will launch in spring 2023 with STRUGGLE SESSIONS by Nellie Bowles, and TAKE DOWN by activist Laila Mickelwait in...