Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War is a 2015 non-fiction book, aimed for young adolescent readers, written by Steve Sheinkin and published through Roaring Brook Press.

The book begins by telling the reader about how two members of The Plumbers are preparing to break into the office of a psychiatrist named Lewis J.

"[1] Publishers Weekly starts off its starred review by saying that "Sheinkin...has done again what he does so well: condense mountains of research into a concise, accessible, and riveting account of history," that "read[s] like the stuff of spy novels and will keep readers racing forward."

"[3] Another starred review was handed out by School Library Journal, stating that the book is "Thoroughly researched...and beautifully written."

It then noted that "the author has a perfect ear for what might hold the attention of young readers" and it will "help them understand" why the world has become a place of "endless war and all-pervasive surveillance is a matter of course.