In January 2015, The third edition of “A guided Tour of Mathematical Methods for the Physical Sciences” will be available in stores! This book, written by Roel Snieder and Kasper van Wijk, aims to teach mathematical physics by doing lots of fun exercises on a variety of applications in (geo)physics. Roel and Kasper thank all our friends, family and colleagues who contributed in one form or another. Many of them are PALs.