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Although Mother's Day is still a week away, some of Hollywood's most stylish moms came together over the weekend for a celebration of the launch of new book The Glow: An Inspiring Guide to Stylish Motherhood, written by InStyle.com’s own senior fashion editor Violet Gaynor with gorgeous photographs by Kelly Stuart.

Hosted by Kayne along with bag designer Clare Vivier and stylist Jessica de Ruiter, the dreamy event took place at designer Jenni Kayne's West Hollywood store and featured appearances by notables including Alec and Hilaria Baldwin (above, with Stuart and Gaynor), Kelly Sawyer, Estee Stanley, and Shiva Rose, along with some more-than-adorable babies. Throughout the evening, guests perused Kayne's pop-up children's boutique while they sipped on spicy margaritas and rosemary grapefruit gimlets and nibbled on fresh farmers market platters.

Attendees shopped for a good cause, as twenty percent of the proceeds from all children's items purchased at Kayne's store during the event (and through May 8th) will be donated to Baby2Baby, a charity that supplies families in need with essential baby gear and clothing for their children.

In The Glow, Gaynor and Stuart give us a rare glimpse into the world of celebrity and designer moms with their little ones, and offer up some inspiring style and life advice for moms and moms-to-be. The book brings their blog theglow.com to life with 150 beautiful photographs and intimate interviews that follow the featured mother's paths from pregnancy to parenthood with wit, charming tips, and a deep understanding of the affectionate relationship between parent and child.