Congrats to Mark Zuckerberg and his wife Priscilla Chan! The couple welcomed their second child and second daughter together this month.
"Priscilla and I are so happy to welcome our daughter August!" he wrote on Facebook.
They also pennedan open letter to their daughter about the world they want to see her grow up in. Zuckerberg wrote, "the world can be a serious place" and "that's why it's important to make time to go outside and play."
Read below!