xkcd is a webcomic created by Randall Munroe that features stick-figure characters and covers a wide range of topics, including science, technology, mathematics, and relationships. The comic is known for its clever humor, insightful commentary, and occasional deep philosophical musings. It often appeals to readers with a background in STEM (science, technology, engineering, and mathematics) due to its intellectual themes. In addition to the comic, Munroe has published several books, such as What If? and Thing Explainer, which further explore scientific concepts and answer hypothetical questions in an accessible way. The comic's unique blend of wit and knowledge has garnered a large following, making it a popular staple in online culture.