Calendar: : Humanity's Epic Struggle To Determine A True And Accurate Year

The Great Ape Project : Equality Beyond Humanity

Cultivating Humanity: A Classical Defense of Reform in Liberal Education

Humanity: A Moral History of the Twentieth Century

Cultivating Humanity: A Classical Defense of Reform in Liberal Education

Open My Eyes, Open My Soul : Celebrating Our Common Humanity

The Oracle of Clarion - Unveiling the Goddess: A Story to Awaken the Heart of Humanity

Deep Time: How Humanity Communicates Across Millennia

Humanity: An Introduction to Cultural Anthropology

A Simple, Decent Place to Live: The Building Realization of Habitat for Humanity