“I picked up the book meaning to read a few pages. My first thought was, ‘This is a cool concept.’ The second thing I thought was, ‘This is really, really clever.’ The third thing I thought was, ‘I should have gone to sleep three hours ago.’”
—Patrick Rothfuss, #1 New York Times bestselling author of The Wise Man's Fear
 
“Butt-kicking librarians, pyrotechnic spiders, and vampires that don’t suck—Jim Hines serves up an incendiary and fun new urban fantasy!”
—Charles Stross, Hugo award-winning author
 
“Nonstop action and laughter power Hines’s riveting second journey into the ‘peculiar life’ of Isaac Vainio…. Like a good pinball game, Isaac’s adventures are frantic, fascinating, and more than a little noisy. Hines supplies everything a reader needs – werewolves, ghosts, robot insects, a fire spider that eats candy, and homages to classic SF – for a very good time.”
—Publishers Weekly
 
"Hot damn, this book is pure geeky fun.... [A] love letter to science fiction and fantasy, with real emotional weight at the center of it — except this version is a rollicking adventure story full of ridiculous little touches. It's a seriously fun ride."
—io9
 
"Hines, who tackled the typical dungeon adventure from a new point of view in his Jig the Goblin series, and demolished damsels-in-distress tropes with his Princess books, kicks off his Magic Ex Libris urban fantasy series with a really entertaining opener in Libriomancer.... An incredibly readable story that’s straightforward without being predictable, and action-packed without being rushed. The main and supporting characters alike have complex and chaotic relationships and histories, and I look forward to seeing these unfold further in the books to come."
—Wired
 
“Isaac Vainio is a hero for the rest of us, the library nerds and bookworms — all of us who read books wishing we could be like our favorite heroes, or that they could be like us.... [Libriomancer] is ardent wish fulfillment with a hefty dose of action, romance, literary pop trivia and just a pinch of social commentary.”
—RT Book Reviews
 
“All writers believe in the magic of books. Jim Hines has created a system where that magic becomes real, usable, and very definitely not always safe. Libriomancer not only pulls magic from between the pages of books—from Gutenberg to Harris—but puts it there under Hines. This is a book for everyone who has ever wanted to pull Excalibur from the page.”
—Tanya Huff, bestselling author of The Silvered
 
“This may be Jim Hines’ best work. Libriomancer is smart, silly, and deadly serious, all at the same time. It’s a book about loving books. This is the magic librarian and ass-kicking dryad adventure story we’ve all been waiting for.”
—Seanan McGuire, New York Times bestselling author of Chimes at Midnight
 
"Whenever I open a Jim Hines novel, I expect to have a good time – humor mixed with some soul pondering, deep character development, fast action, and snappy dialogue. So I was unsurprised that Libriomancer had all of these things in spades, plus a unique use of magic and a fractured and cobbled together cosmology that makes complete sense as a whole. What I didn’t expect was to see myself in the pages. With Isaac Vainio, Hines has created a protagonist who not only knows and loves the same geek pop culture that I do, but who has a passion for books as deep as my own."
—Black Gate