Elementary Number Theory: A Problem Oriented Approach

This book is designed so that it may be used in several ways : it can be used for self study, as a guide for tutorially directed work, or as a supplementary text or source of problems for an ordinary first or second course in number theory. The aim of the book is similar to that of Aufgaben und Lehrsatze aus der Analysis by Polya and Szego. ...
The book is written by hand in calligraphy by Gregory Maskarinec. A unique presentation.