Just any text editor and reloading the file one's editing works fine as well: shell$ sbcl [... some editing ...] sbcl> (load "file.lisp") As for w

Just any text editor and reloading the file one's editing works fine as well: shell$ sbcl [... some editing ...] sbcl> (load "file.lisp") As for which Lisp. I advise Common Lisp since it's the most practical of the lot. Doesn't force you into a particular paradigm.