UCL Department of Science and Technology Studies


Expression of Emotions in Man and Animals

by Charles Darwin
edited by Joe Cain and Sharon Messenger
Penguin Classics
May 2009

He who admits, on general grounds, that the structure and habits of all animals have been gradually evolved, will look at the whole subject of Expression in a new and interesting light.

EEMA images

New edition, with an upgrade

Published in 1872, The Expression of the Emotions in Man and Animals was a book at the very heart of Darwin's research interests - a central pillar of his 'human' series. This book engaged some of the hardest questions in the evolution debate, and it showed the ever-cautious Darwin at his boldest. If Darwin had one goal with Expression, it was to demonstrate the power of his theories for explaining the origin of our most cherished human qualities: morality and intellect.

  • related article: Cain, Joe. 2009. Express Yourself. Wellcome History 40:32. (Web)


"WOW!! I am really impressed...The research is excellent, the writing outstanding, the coverage spot on and the suggestion about Huxley's motives in taking up the Darwin
gauntlet is brilliant and I do not think I have seen it elsewhere. Well done indeed!"

- a prominent Darwin scholar

What's special here?

Dozens of Darwin reprints are now in print. What makes the Penguin Classics edition special?

The Penguin Classics edition reprints the rarely examined 1890 "second" edition of Darwin's The Expression of the Emotions in Man and Animals. This includes additions and alterations made by Charles' son Francis Darwin.

  • Introduction by Cain creates a historical context for this book and provides important bibliographical information. 
  • Appendix 1 presents original translations of quotations from French sources used by Darwin in the book.
  • Appendix 2 presents the full text of the questionnaire Darwin sent around the world in search of comparative information about human expression. 
  • Appendix 3 provides detailed information about the images specially selected for this edition. Darwin's own index completes the volume.

Don't forget the photographs! This edition of Expressioncontains 24 specially selected images from Darwin's own research collection - images he compiled while studying expression. These survive in his archives and are rarely seen by non-specialists. These images show the range of sources Darwin consulted. They also show the difficulties in studying expression before the age of high-speed photography and controlled experiment.


  • Chronology
  • Introduction
  • Further Reading
  • About Expression of Emotions
  • Appendices 1: Translations of French Quotations 2: Darwin’s “Queries About Expression” 3: Supplemental Images
  • Index


ISBN-10: 0141439440 
ISBN-13: 978-0141439-44-0