Beyonce & Jay-Z: Erica Reid's Book Launch Party!

Beyonce and Jay-Z attend the launch party for Erica Reid‘s book “The Thriving Child” on Tuesday (May 8) at a private residence in New York City.

The party was hosted by Erica‘s husband, record executive and X Factor judge L.A. Reid!

The book, which is in stores now, is about Erica‘s journey through raising two children with allergies, asthma, and other common challenges. It also features in-depth prescriptive advice from top experts, including doctors, and celebrity mothers.

Also pictured inside: Mary J. Blige.

FYI: Beyonce is wearing Roland Mouret.

10+ pictures inside of Beyonce and Jay-Z at the book launch party…