Sometimes it's for Java/Javascript interop or access to the large variety of libs in those languages, but other possible reasons you might pick Clojure instead

Sometimes it's for Java/Javascript interop or access to the large variety of libs in those languages, but other possible reasons you might pick Clojure instead of another Lisp are: 1. immutable by default 2. strong focus on concurrency/parallelism 3. well-thought-out design of core library (one of the most cohesive I've ever seen) 4. largest single Lisp community (just going by GitHub, Clojure has ~18k repos, CL has 10k, Racket has 5.5k, Scheme has 7.5k) 5. unified syntactic sugar for common data structures like maps/arrays The above are just factors that distinguish it from other Lisp-based languages. If you're coming from Java/C/C++/Ruby/Python/PHP/etc, there's way more reasons than that.