The Reverend Howard Finster was twenty feet tall, suspended in darkness. Or so he appeared in the documentary film that introduced a teenaged Greg Bottoms to the renowned outsider artist whose death would help inspire him, fourteen years later, to travel the country. Beginning in Georgia with a trip to Finster's famous Paradise Gardens, his journey--of which The Colorful Apocalypse is a masterly chronicle--is an unparalleled look into the...