Stein在國際上享有盛譽，現任美國普林斯頓大學數學係教授。

他是當代分析，特彆是調和分析和分析領域領袖人物之一。古典調和分析最睏難問題之一是推廣到多維。他是多維歐氏調和分析的創造者之一，為此他發展瞭許多先進工具如奇異積分、Radon變換、極大函數等。他還發展瞭多個實變元的Hardy空間理論，推廣瞭1971年F. John和L. Nirenberg的重要發現：即Hardy空間與BMO空間的對偶。在群上的調和分析方麵也有貢獻，例如同R.Kunze一起發現所謂Kunze-Stein現象。除此之外，他對多復變問題也做齣瞭突齣成績。

除瞭研究工作之外，他的許多書成為影響學科發展的重要參考文獻。為此，他榮獲1984年美國數學會在論述方麵的Steele奬。

由於他的成就，他在1974年被選為美國國傢科學院院士，1982年被選為美國文理學院院士，1993年獲得瑞士科學院頒發的Schock奬。1999年獲得世界性Wolf數學奬。

This first volume, a three-part introduction to the subject, is intended for students with a beginning knowledge of mathematical analysis who are motivated to discover the ideas that shape Fourier analysis. It begins with the simple conviction that Fourier arrived at in the early nineteenth century when studying problems in the physical sciences - that an arbitrary function can be written as an infinite sum of the most basic trigonometric functions. The first part implements this idea in terms of notions of convergence and summability of Fourier series, while highlighting applications such as the isoperimetric inequality and equidistribution. The second part deals with the Fourier transform and its applications to classical partial differential equations and the Radon transform; a clear introduction to the subject serves to avoid technical difficulties. The book closes with Fourier theory for finite abelian groups, which is applied to prime numbers in arithmetic progression. In organizing their exposition, the authors have carefully balanced an emphasis on key conceptual insights against the need to provide the technical underpinnings of rigorous analysis. Students of mathematics, physics, engineering and other sciences will find the theory and applications covered in this volume to be of real interest. "The Princeton Lectures in Analysis" represents a sustained effort to introduce the core areas of mathematical analysis while also illustrating the organic unity between them. Numerous examples and applications throughout its four planned volumes, of which "Fourier Analysis" is the first, highlight the far-reaching consequences of certain ideas in analysis to other fields of mathematics and a variety of sciences. Stein and Shakarchi move from an introduction addressing "Fourier" series and integrals to in-depth considerations of complex analysis; measure and integration theory, and Hilbert spaces; and, finally, further topics such as functional analysis, distributions and elements of probability theory.