JASP is a free, open source software program to conduct both Frequentist and Bayesian statistical analyses. It is user-friendly, fast and versatile. Herbert Hoijtink will go through the basics, and make such a compelling case for JASP that you will never use SPSS, STATA or any other corporate statistical software ever again! P.s. the acronym stands for Jeffreys’s Amazing Statistics Program, in recognition of Bayesian pioneer Sir Harold Jeffreys.