Emacs has long been a popular editor for programmers of all languages. But given that Emacs is written (and extended) in Lisp, it’s no surprise that Lisp hackers have a particular affinity for Emacs. In the case of Clojure, there have been several generations of Emacs modes and tools over the years. In this talk, Bozhidar Batsov, the current maintainer of the CIDER Emacs development environment for Clojure, describes the history of these tools, why he prefers them, and how the tools and the language have both evolved over time.