Jess Ladd is the founder and CEO of Callisto, a nonprofit that creates technology to combat sexual assault, support survivors, and advance justice, such as an online sexual as...

Dawn Laguens is an expert in residence at design and innovation firm IDEO and a strategic advisor at Redshift Leadership and The Vaid Group. In these roles, she is partnering...

Jonathan LaPook is a professor of medicine at NYU School of Medicine and the Mebane Professor of Gastroenterology at NYU Langone Health. A practicing physician, he is founder...

Matt Laslo is a freelance reporter based on Capitol Hill. Covering campaigns and federal policy since 2006, he has produced stories for NPR and its affiliates, VICE News, Roll...

Jeff Leach is the founder of the Human Food Project, an organization that seeks to raise awareness about changes in human ecology that have given rise to diseases of the moder...

Carrie Leana is the George H. Love Professor of Organizations and Management at University of Pittsburgh, with appointments in the business, medicine, and public affairs schoo...

Bio coming soon.

Charlie Lucas is a 13-year-old self-taught coder, proficient in Swift, Java, HTML, and Python. He co-created the NotOK app with his older sister, Hannah, who is 17. NotOK is a...

Hannah Lucas is a 17-year-old high school student who co-created the NotOK app. With a passion for mental health advocacy and business, she and her younger brother, Charlie, d...