G．H．Hardy(1877—1947)享有世界聲譽的數學大師，英國分析學派的創始人之一。數學貢獻涉及解析數論、調和分析、函數論等方麵。培養和指導瞭包括印度數學奇纔拉馬努金和我國數學傢華羅庚在內的眾多數學大傢。

E．M．Wright(1906—2005)英國著名數學傢，畢業於牛津大學，曾多年擔任英國名校阿伯丁大學校長，以及Journal of Graph Theory和Zentralblatt fur Mathematik的名譽主編。愛丁堡皇傢學會會士、倫敦數學會會土。主要研究解析數論、圖論等領域。

This is the fifth edition of a work (first published in 1938) which has become the standard introduction to the subject. The book has grown out of lectures delivered by the authors at Oxford, Cambridge, Aberdeen, and other universities. It is neither a systematic treatise on the theory of numbers nor a 'popular' book for non-mathematical readers. It contains short accounts of the elements of many different sides of the theory, not usually combined in a single volume; and, although it is written for mathematicians, the range of mathematical knowledge presupposed is not greater than that of an intelligent first-year student. In this edition, the main changes are in the notes at the end of each chapter. Sir Edward Wright seeks to provide up-to-date references for the reader who wishes to pursue a particular topic further and to present, both in the notes and in the text, a reasonably accurate account of the present state of knowledge.