Sean Grimsby

Sean Grimsby was first published in 1974, in "Humpty Dumpty Magazine." In recent years he has worked as a copywriter and ghost writer. Grimbsy is rigorously self-educated with specialization in: cultural anthropology, comparative religion, philosophy, musicology, and Chinese internal arts, in which he's a certified instructor and 25-year practitioner.

How to Calculate Air Infiltration
Contributed by Sean
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