- EbookSpirit as Universal ConsciousnessGeorge Lowell Tollefson
- EbookThe Immaterial Structure of Human ExperienceGeorge Lowell Tollefson
- EbookThe System of the MindGeorge Lowell Tollefson
- EbookUnbridled Democracy and other philosophical reflectionsGeorge Lowell Tollefson
- EbookThe Thinking ArtsGeorge Lowell Tollefson
- EbookA Healer of NationsGeorge Lowell Tollefson
- EbookThoughts on Creativity, Spirit, and the Ethical LifeGeorge Lowell Tollefson
- EbookThe Thinking ProcessGeorge Lowell Tollefson
- EbookThe Limits of ReasonGeorge Lowell Tollefson
- EbookMoral DemocracyGeorge Lowell Tollefson
- EbookEthical ConsiderationsGeorge Lowell Tollefson
- EbookKey to the Philosophy of ImmaterialismGeorge Lowell Tollefson