1 1. Introduction and History2 2. Gilbreath’s Second Principle2 2.1 Possible Effects2 2.2 The Basis of Gilbreath’s Principle3 2.3 A Selection of Effects3 2.3.1 The Touch of the Master3 2.3.2 A Number Force4 2.3.3 The Perfecto Bridge Deal4 3. Gilbreath’s First Principle4 3.1 Introduction5 3.2 Possible Effects5 3.3 Basis of Gilbreath’s First Principle7 3.4 Selected Effects7 3.4.1 Gilbreath on Gilbreath8 3.4.2 Gil’s Game8 3.4.3 Strictly to Enhance9 3.4.4 Basis Color Control9 3.4.5 The Computer Deck10 3.4.6 A Trick Worth Two of That10 3.4.7 Deck Memorization10 3.4.8 The Lone Stranger11 3.4.9 Gilbreath in Arithmetic Progression11 3.4.9.1 Sensitive Fingertips11 3.4.9.2 Suit Memorization12 4. Specifiction of Publications12 4.1 Gilbreath’s First Principle14 4.2 Gilbreath’s Second (General) Principle