Starting in 1946 after his return to the U.S. until his death in 1986, Brill began publishing A. Brill's Bible of Building Plans, making himself the keeper of design secrets for the outdoor amusement industry. For $1, an enterprising soul could purchased Brill's Bible, a catalog of blueprints and designs for everything from bleachers and carnival rides built from old truck parts to cotton candy makers and stage illusions like the "floating chair suspension" and "girl to gorilla" transformation, often used as a sideshow act. For an additional fee, one could then order full plans from Brill's catalog. Based on Brill's designs, one could practically build an entire show from top to bottom.
While notoriously against government regulation, Brill claimed that he never designed a game or feature that wasn't on the up and up, though he did know the secrets of the carnival grifter. He trusted in his reputation as a businessman to get him through and considered selling the plans for rigged attractions was too big a risk for too little reward. Today, an original Brill's Bible can fetch top dollar at auction and his plans are bought, sold, and traded by magicians, carnies and outdoor amusement owners and enthusiasts even now, though many believe that not all of his plans are complete or entirely accurate (Brill was known to measure only a few parts of an attraction and then extrapolate the rest). His Bible even has a place in the Library of Congress.
After Brill's death in 1986, the business was bought by David L. Hewitt, who, with the help of his children restored the original catalog and plans, adding additional notes gathered from Brill's estate. PDF copies of the 1970 edition of Brill's Bible can be purchased from Goodmagic.com and originals can occasionally be found on auction sites.