This is a definitive edition of R A Fisher's classic - probably the best known book in evolutionary biology after Darwin's Origin of Species. Incorporated into the text of the original 1930 Clarendon Press edition are the modifications Fisher made to the second edition, published by Dover in 1958, and unpublished material that was interleaved in Fisher's own copy. No other version of this classic exists in print. It will be of equal interest to evolutionary biologists, mathematicians, and historians of science.

The writings of R.A. Fisher have proved to be as relevant today as when they were written. This book brings together as a single volume three of his most influential textbooks: Statistical Methods for Research Workers, Statistical Methods and Scientific Inference, and The Design of Experiments. In a new Foreword, written for this edition, Professor Frank Yates discusses some of the key issues tackled in the textbooks, and how they relate to modern statistical practice.