For one‎- or two‎-semester Basic Probability courses in the departments of Mathematics‎,‎ Physics‎,‎ Engineering‎,‎ Statistics‎,‎ Actuarial Science‎,‎ Operations Research‎,‎ and Computer Science‎.‎ Probability is presented in a very clear way in this text‎:‎ through interesting and instructive examples and exercises that motivate the theory‎,‎ definitions‎,‎ theorems‎,‎ and methodology‎.‎ Due to its unique organization‎,‎ this text has also been successfully used in teaching courses in discrete probability‎.‎