David Richo's How to Be an Adult in Relationships offers a guide to mindful loving, emphasizing five key elements: attention, affection, appreciation, acceptance, and allowing.

The book blends psychological and spiritual practices to help readers resolve childhood issues, improve relationships, and foster spiritual growth. Richo uses the metaphor of a heroic journey to illustrate the relationship development process, from initial romance through conflict to committed intimacy.

The book also explores ego, mindfulness, grief, and letting go, providing practical exercises and reflections to aid personal transformation. Ultimately, the book aims to empower readers to build healthy, fulfilling relationships and contribute to a more compassionate world.