"""...Porter and Stirling provide a precise and practical methodology for solving integral equations."" Directions ""This book may be successfully used by graduate students and by any person working in the field of applied mathematics; it gives a very good treatment of all the subjects involved."" A. Corduneanu, Mathematical Reviews ""...this is not a treatise but an excellent book from which to learn the subject, and therefore at least as valuable for the undergraduate library. Its level is just right for the beginning graduate student or the highly motivated senior."" Choice ""...a very good book for students who want to become familiar with the basic theory of linear integral equations."" Harry Hochstadt, SIAM Review ""...an excellent way to gain acquaintance with integral equations... Jet Wimp, The Mathematical Intelligencer"