Snake Oil is a book written by Jim Rose. The following was taken from the book's description on Amazon.com:
The gyp, hoodwink, shuck, sandbag: An artform that has been passed down through generations of hustlers, con men, and freaks. Selling snake oil is the ultimate con, and readers will find within these pages everything from classic deceptions to the most recent of ruses. From fooling your friends to dangerous stage stunts, Jim Rose, snake oil salesman extraordinaire, provides new angles to old tricks. Those who dare to explore these pages will find themselved enticed by this special brand of snake oil. Step right up: it's all here. There's nothing it won't cure!