"Good. Scary Good."
-Wired

"Provocative... A double-edged vision of the post-human."
-The Wall Street Journal
 
"A lightning bolt of a novel, with a sense of awe missing from a lot of current fiction." -Ars Technica
 
"Starred Review. Naam turns in a stellar performance in his debut SF novel... What matters here is the remarkable scope and narrative power of the story."
-Booklist

"A rich cast of characters...the action scenes are crisp, the glimpses of future tech and culture are mesmerizing."
- Publishers Weekly 

“Naam displays a Michael Crichton-like ability to explain cutting-edge research via the medium of an airport techno-thriller.”
–SFX Magazine 

"A superbly plotted high-tension technothriller ... full of delicious, thoughtful moral ambiguity ... a hell of a read." -Cory Doctorow

"A gripping piece of near future speculation... all the grit and pace of the Bourne films." -Alastair Reynolds, author of Revelation Space

"The most brilliant hard SF thriller I've read in years. Reminds me of Michael Crichton at his best." -Brenda Cooper, author of The Creative Fire

"Any old writer can take you on a roller coaster ride, but it takes a wizard like Ramez Naam to take you on the same ride while he builds the roller coaster a few feet in front of your plummeting car... you'll want to read it before everyone's talking about it."
- John Barnes, author of the Timeline Wars and Daybreak series.

"An incredibly imaginative, action-packed intellectual romp! Ramez Naam has turned the notion of human liberty and freedom on its head by forcing the question: Technology permitting, should we be free to radically alter our physiological and mental states?"
- Dani Kollin, Prometheus award winning author of The Unincorporated Man

"The only serious successor to Michael Crichton working in the future history genre today." 
- Scott Harrison, author of Archangel
 
"If you are posthuman or transhuman this is an absolute must-read for you; and even mere mortals will love it." 
- Philip Palmer, author of Version 43 and Hell Ship
 
"Ramez writes excellent action sequences, incorporating his technology well, and the lives at stake are more than just cardboard cutouts. No one in this story is 'as meets the eye'" 
- Timothy C. Ward

 "a fast, fun read which is both emotionally engaging and thought-provoking. You'll be mulling over the implications of Nexus — the book and the drug — long after you put the book down."
-Analee Newitz, io9.com