"Gareth Gore’s investigation into Opus Dei reveals a powerful and shadowy organisation whose reach extends into politics, religion and finance....Vividly told and excellently researched.”—Financial Times

"A new, deeply researched book ."—New York Magazine

"Gareth Gore’s new book, Opus is quite frankly shocking. It’s also a much-needed exposé of what looks very much like a cult within the Catholic Church....it’s clear from Gore’s own detailed notes and the extensive hours he spent interviewing both members and former members that financial and political scandal has dogged the movement since its very beginning....In 14 chapters, Gore lays out the details that he found, telling the extraordinary story of a small Spanish sect that, with the help of the Franco regime, quickly learned how to excel in financial and political corruption." —U.S. Catholic
 
 “Under Gore's skillful research readers will learn about a 100-year-old organization that was designed to impose its view of religion and the world on everyone. Never has ‘follow the money’ been so important. Gore lays out, in meticulous detail, how Opus Dei, whose members are known as ‘numeraries’ and ‘supernumeraries,’ recruit young men who are wealthy, come from wealthy families, or are destined to become wealthy….The wealthy Americans that Gore references in this book, and their relationship to Opus Dei, provides readers with a wealth-based roadmap that exposes the serious threat this organization poses to the country.” —New York Journal of Books
 
“In identifying Opus Dei’s part in the Christian Nationalist movement, Gore has done a public service.” —Religion News Service
 
"Opus, written by the financial journalist Gareth Gore, is a solidly researched work and will undoubtedly survive the public-relations, and even legal, blitz that Opus Dei will surely mount against it." —The Baffler
 
“Moving with the suspenseful twists and turns of a political thriller, this well-documented book reveals the hidden agendas and intrigue that belie institutional structures in a post-truth world. Unsettling, informative reading.” —Kirkus Reviews

“[A] chilling debut exposé. —Publishers Weekly (starred review)