Let Us C is a popular introductory book to the world of C programming. Its simple and approachable style has kept it a popular resource for newbies for many years. Summary of The Book With the expanding horizon of digital technology, there is also an increasing need for software professionals with a good command of a variety of programming languages. The C language is one of the basic skill sets in a programmers portfolio. There has been an explosion in the number of programming languages and different development platforms. However, the C programming language has retained its popularity across the decades. Let Us C is a great resource from which one can learn C programming. It does not assume any previous knowledge of C or even the basics of programming. It covers everything from basic programming concepts and fundamental C programming constructs. The book explains basic concepts like data types and control structures, decision control structure and loops, creating functions and using the standard C library. It also covers C preprocessor directives, handling strings, and error handling. It also discusses C programming under different environments like Windows and Linux. The book uses a lot of programming examples to help the reader gain a deeper understanding of the various C features. This book also aims to help prepare readers not just for the theoretical exams, but also the practical ones. It builds their C programming skills. It also helps in getting through job interviews. There is a separate section in the book that discusses the most Frequently Asked Questions in job interviews. This is the 13th edition of the book and it covers all levels of C programming, from basic to intermediate and advanced levels of expertise. With clear concept coverage, simple instructions and many illustrative examples, Let Us C teaches programming and C language features effectively and easily. Getting Started Ø C Instructions Ø Decision Control Instruction Ø More Complex Decision Making Ø Loop Control Instruction Ø More Complex Repetitions Ø Case Control Instruction Ø Functions Ø Pointers Ø Recursion Ø Data Types Revisited Ø The C Preprocessor Ø Arrays Ø Multidimensional Arrays Ø Strings Ø Handling Multiple Strings Ø Structures Ø Console Input/ Output Ø File Input/ Output Ø More Issues in Input/ Output Ø Operations on Bits Ø Miscellaneous Features Ø C Under Linux Ø Interview FAQ s Ø C Language Programmers Instant Reference Card Ø Appendix A- Compilation and Execution Ø Appendix B- Precedence table Ø Appendix C-Chasing the Bugs Ø Appendix D- ACII Chart Ø Periodic Tests I to IV Ø Index