# Sets Python Set is an unordered collection of data types that is iterable, mutable, and has no duplicate elements. The order of elements in a set is undefined though it may consist of various elements. The major advantage of using a set, as opposed to a list, is that it has a highly optimized method for checking whether a specific element is contained in the set. Visit the following resources to learn more: - [@video@Python Sets tutorial for Beginners](https://www.youtube.com/watch?v=t9j8lCUGZXo) - [@article@An W3Schools - Python Sets](https://www.w3schools.com/python/python_sets.asp) - [@article@An In-Depth Guide to Working with Python Sets](https://learnpython.com/blog/python-sets/)