Rachel Zoe celebrated the launch of her second book, Living in Style, last night, and style setters including Olivia Palermo and AnnaSophia Robb came out to support! As you can imagine, the night was all about glamour — and we've got the scoop from inside the fete with Tiffany & Co. Rachel's new book is in stores now.

On Allison: Zara top and skirt, House of Harlow 1960