Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. Coursera's Ruby catalogue teaches you about this versatile language that is designed to be easy to write and read. You'll learn everything from basic Ruby programming techniques to more advanced topics like metaprogramming, Ruby on Rails, and testing Ruby applications. You'll also learn to effectively utilize Ruby's elegant syntax, dynamic typing, and powerful features to develop web applications, automation scripts, and data analysis tools. Enhance your programming repertoire by mastering Ruby's object-oriented principles, built-in functions, exception handling, and much more.