The Unofficial C For Dummies Website

This page supports the C programming books written by Dan Gookin, as well as the C language training courses offered online at LinkedIn Learning. All coders are welcome.

Recent Lessons

Getting and Setting the File Position Indicator: January 3, 2026 Add two more functions to the roundup of those that manipulate how a file is read.
A Colorful Hexdump: December 27, 2025 At long last, here is my colorful version of the hexdump utility.
Code Page 437: December 20, 2025 The myth of "extended" ASCII.
Dumping the Screen in W-I-D-E Color: December 13, 2025 Wide characters offer more variety when outputting "plain" text.
Dumping the Screen in Color: December 6, 2025 One of my favorite command line tools can do with some colorful improvement.

Lessons are posted each Saturday; see the blog for all the Lessons

This Month's Exercise

Is It a "Real" Triangle?: January 1, 2026 Triangles have rules, you know.

Exercises are posted on the first of the month; see the blog for all the Exercises

Current Titles

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For support on my older C titles: Beginning C Programming, C All-In-One reference and C For Dummies.

Online Training

Online training is provided through Linkedin Learning, a subscription service. Click here to see my available courses. New courses are frequently available and updated.

"For Dummies" is a trademark or registered trademark of John Wiley.
This site is the online companion to the various
C language titles written by Dan Gookin.