Gideon's novel Wife 22 (Ballantine) tells the story of a woman whose marriage of nearly 20 years is threatened when she participates in an anonymous study on love.
"I love coats and shoes," says Gideon, who is based in Oakland. "I believe in a fabulous coat with a great pair of boots, because it doesn't matter what you wear underneath."
A Dosa half slip trimmed with handmade daisy lace that she got for 75 percent off. "It's a staple in my summer wardrobe—I wear it under sundresses with just the lace peeking out, and I also wear it alone as a skirt," she says.
Her Makeup Story
The conflict: "I'm Indian and Armenian—dark under-eye circles are in my DNA. I'm always trying different concealers, but so many of them look gray against my olive skin."
The denouement: A yellow-based concealer that's slightly warmer (but not lighter) than Gideon's natural skin tone softens her dark circles without looking chalky. A creamy formula that comes in a compact or pot gives the most coverage.
The drugstore hero: E.L.F. Cover Everything Concealer in Tan ($2)
H&M dress, $59.95; hm.com for stores.
Liz Claiborne necklace, $20; jcp.com.
Colour Me cuff, $15; cameopr.com.
Forever 21 ring, $4.80; forever21.com.