Two volumes of a classic 5-volume work in one handy edition. Part I considers general foundations of the theory of functions; Part II stresses special functions and characteristic, important types of functions, selected from single-valued and multiple-valued classes. Demonstrations are full and proofs given in detail. Introduction. Bibliographies.
"Theory of Functions" is a book by Konrad Knopp. As the blurb on the back mentions, the book does an outstanding job of explaining the subject. My only issue is that I need to stop rushing through books like this. I need to let the information soak in. In any case, the book covers functions. The book is a reprint. Sometimes the subscripts are small enough to be illegible. On the other hand, I did learn a lot from this book. It explains the characters used in each equation, and that is all I ask for from a textbook.