Foreword

Abstract

This second session of the School of Statistics for Astrophysics has been attended by an increased number of people coming from accross the world, mostly post-docs and students. This confirms the success of the first session in 2013 and of the specificity of this school: lecturers are statisticians and half of the courses are devoted to practice. Statistical tools are not blackboxes, it is essential to know some mathematics behind the techniques. The practice is a complementary necessity to understand the possibilities and limitations of a particular technique.