Lisp in the real world

Question

I have experimented with Lisp (actually Scheme) and found it to be a very beautiful language that I am interested in learning more about. However, it appears that Lisp is n

Answer 1

I was quite impressed when I found out that the PRISM («The Prism project is a long term project to build software tools for radiation therapy planning, including artificial intelligence tools as well as manual simulation systems.») is written in Common Lisp.

At my job I am writing software that uses DICOM and I must say that writing good DICOM implementation is a hard task. In their report they describe how Common Lisp let them build a good DICOM implementation that is better (at least in some ways) than other implementation with lesser effort.