Quick-knife Hoodoo is an introduction to the life and doings of notorious (among those who crossed paths with him), but extremely secretive, con-jure man, con-man, con-vict Otis "Dubble Bubble" Sims, 1905 - 1963, who operated mainly in West Tennessee, but sometimes ranged as far north as St. Louis and as far south as New Orleans. His conjure working methods are described generally...some in detail...and ways of working with him today...his likes and dislikes...are presented for those interested in buying "Dubble Bubble" a drink and asking him for some advice or a favor.