《經濟學概論》(Principles of Economics:A Streamlined Approach)是一本經濟學入門教科書，。它特別強調重要經濟原理之介紹與應用。本書作者發現，即便是修習過幾個月經濟學的學生，也常常無法回答一些簡單的經濟問題。作者認為，主要原因可能是授課教師給學生太多的內容，導致學生沒能學會最重要且最基本的經濟原理。因此，本書聚集於幾個重要的經濟原理上，在避免過度依賴數學
Strongly regular graphs lie at the intersection of statistical design, group theory, finite geometry, information and coding theory, and extremal combinatorics. This monograph collects all the major known results together for the first time in book form, creating an invaluable text that researchers in algebraic combinatorics and related areas will refer to for years to come. The book covers the theory of strongly regular graphs, polar graphs, rank 3 graphs associated to buildings and Fischer groups, cyclotomic graphs, two-weight codes and graphs related to combinatorial configurations such as Latin squares, quasi-symmetric designs and spherical designs. It gives the complete classification of rank 3 graphs, including some new constructions. More than 100 graphs are treated individually. Some unified and streamlined proofs are featured, along with original material including a new approach to the (affine) half spin graphs of rank 5 hyperbolic polar spaces.
