Quayle's research is often found in large, image-heavy volumes that combine biblical scripture with historical accounts and mythological legends.
, which mentions the Nephilim—the "heroes of old, men of renown" born from the union of "sons of God" and human women. Quayle argues that these beings were not mere metaphors, but literal giants who possessed advanced technology and built the massive civilizations of the pre-flood world. Key themes explored in the book include: The Master Builders: steve quayle giants book pdf