This book focuses on the principles of computer programming and software development using the C# programming language. It's targeted at beginning programmers who know nothing about programming, and programmers who know other programming languages but who'd like to learn C#. This book covers standard data types, control structures, looping structures, classes, software design issues, creation of code libraries, arrays, strings, sorting and searching, class inheritance, collection classes, data validation and error handling, file I/O, graphical user interfaces, bitwise operators, multithreading, and network programming. We take a journey into computer programming and software development that will change your perception of computers!