Woodward plans to release the 448-page book on September 11, soon before the midterm elections.
While Trump was not interviewed by Woodward specifically for the book, its title comes from a remark Trump made in an interview with Woodward and Washington Post reporter Robert Costa when he was a presidential candidate in 2016.
According to the Washington Post, the book, which will be Woodward's 19th, "reveals in unprecedented detail the harrowing life inside President Donald Trump's White House and precisely how he makes decisions on major foreign and domestic policies".
"Fear is the most intimate portrait of a sitting president ever published during a president's first years in office", one source said, adding that the book will take readers behind the scenes of the Trump White House with extensive in-the-room accounts of meetings with the President.
Camilo Sesto, ingresado por un cólico renal
El cantante Camilo Sesto se halla ingresado en el Hospital Universitario Puerta de Hierro de Madrid a causa de fuertes dolores en zona lumbar.
"Instead, the author has told friends, he's gone back to some of the signature moves of his youthful reporting days", the newspaper, where Woodward is still an associate editor, said Monday.
The expected tenor of the book is underscored by its unsettling cover, an extreme close-up of a squinty-eyed Trump depicted through a gauzy red filter.
According to the report, Woodward returns his traditional methods in the book to on-the-ground reporting to fill in the details behind the walls of the White House. The White House was forced to go on the offensive after the publications of former FBI Director James Comey's A Higher Loyalty: Truth, Lies, and Leadership and journalist Michael Wolff's Fire and Fury: Inside the Trump White House.
He was asked to comment on one of Barack Obama's statements in which he said: 'Real power means you can get what you want without having to exert violence'.