241. CAD
     Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) software
242. Calispel
     Calispel is a concurrency library for thread-safe message-passing channels, in the style of the occam programming language
243. call-next-macro
     Here's a macro example that may be less of a headache to understand than rebinding
244. call-with style
     An approach to implementing macro of the type "with-foo"
245. CALM
     Canvas Aided Lisp Magic, create canvas-based applications with Lisp and distribute them on Linux, macOS, Windows, and the web
246. canonicalized-initargs
     canonicalized-initargs provides a :canonicalize slot option accepting an initarg canonicalization function
247. CAPTURED-STREAM
     captured-stream is a small Common Lisp library for viewing streams as sequences
248. carrier
     Carrier is an async HTTP client driven by cl-async and fast-http
249. cartesian-product-switch
     cartesian-product-switch is a macro for choosing the appropriate form to execute according to the combined results of multiple tests
250. Case sensitivity
     FAQ: Is Common Lisp really case-sensitive?

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