The document promotes a book called "Radical Marriage" that argues conventional marriage advice may not lead to desired outcomes like intimacy, love, joy, and stability. It claims following conventional advice around compatibility, chemistry, compromise, and communication may only get a marriage to an okay place rather than an extraordinary one. The document invites the reader to sign up to learn more about turning conventional marriage advice upside down to have a marriage with more joy, peace, intimacy, adventure, and meaning than imagined.