Here are two sites related to Mortimer J. Adler to explore:
The Great Books from the Access Foundation
From the ancient classics to the masterpieces of the 20th century, the Great Books are all the introduction you’ll ever need to the ideas, stories and discoveries that have shaped modern civilization.
Center for the Study of The Great Ideas: A Synoptical Approach to the Great Books and Practical Philosophy
Their motto: Philosophy is Everybody's Business