Roger Nygard with Christopher Ryan, author of Sex At Dawn.

Matt Ridley, author of The Red Queen.

Joy Chen, author of Do Not Marry Before Age 30.

Neil Strauss, author of The Game, & Truth.

Rabbi Lazer Brody, translator & teacher of Rabbi Shalom Arush’s book The Garden of Emuna.

Rachel Hope, author of Family By Choice.

Robin Baker, author of Sperm Wars.

Roger Nygard with Ty Tashirio, author of The Science of Happily Ever After.