It has been five years since the first edition of The E-Primer and we remain proud of our work. Soon after, however, Psychology Software Tools updated their E-Prime to version 3 with tons of new features. As it quickly became apparent that the demand for The E-Primer far outstripped our expectation, we decided The E-Primer could do with a fresh and shiny coat of paint as well. We are immensely pleased to announce this second edition achieves that, and much more. The most important new features of E-Prime 3 are now all covered, complete with new exercises and tutorials. We also made many adjustments to the original text in response to suggestions from students and colleagues. Hopefully, they will agree this new edition is much improved, without the humorous style being sacrificed: We remain convinced that programming experiments in E-Prime is great fun and should never become a chore.

We would like to thank Saskia van Dantzig for her contributions to the first edition of the book. This second edition has benefited much from expert feedback from David McFarlane and the people at Psychology Software Tools (David Nicholson, Anthony P. Zuccolotto, and Gretchen Brauch): thank you all for all your time and effort! Finally, we would each like to mention a few people personally:

Michiel Spapé: “I would like to express my appreciation for colleagues who supported and inspired my teaching: Thanks, Manuel Eugster (Aalto University) and Liverpool Hope University gang: Letizia Palumbo, Belen Lopez-Perez, Yue Yue, & Antonio Zuffianò. I wish I could imitate you better!” Rinus Verdonschot: “I would like to thank my colleagues and friends for providing me with inspiration and my participants for taking part in my (occasionally mind-numbing) experiments.”

Henk van Steenbergen: “I would like to thank the technicians at the SOLO department at Leiden University for their help and suggestions for improvements and the students and colleagues in my yearly E-Prime classes for their feedback.”