Klages was born in Ohio, and now lives in San Francisco.
Her short fiction has appeared in science fiction and
fantasy anthologies and magazines, both online and in print,
including The Magazine of Fantasy and Science Fiction,
Black Gate, Eclipse, and Firebirds Rising. Her story,
"Basement Magic," won the Best Novelette Nebula Award in
2005. Several of her other stories have been on the final
ballot for the Nebula, World Fantasy, and Hugo Awards, and have been
reprinted in various Year’s Best volumes.
She was a finalist for the John W. Campbell Award, and is a
graduate of the
Clarion South writing workshop.
Her first novel, The Green Glass Sea, about two misfit
eleven-year-old girls living in Los Alamos during WWII, while
their parents are creating the atomic bomb, came
out in October 2006 from Sharyn November at Viking. Her second novel, White Sands, Red Menace,was published in 2008, also from Viking. A collection of her short fiction, Portable Childhoods, came out from Tachyon Publications in 2007.
She has also written four books of hands-on science
activities for children (with Pat Murphy, et al.) for the
Exploratorium museum in San Francisco.
In addition to her writing, she serves on the Motherboard of
the James Tiptree, Jr.
Award, and is somewhat notorious as the
auctioneer/entertainment for the Tiptree auctions at
When she's not writing fiction, she sells old toys and
eBay, and collects lead civilians.