A Practice Note explaining how to draft and serve a response to a request for production of documents (RFP) (also called a document request) in Illinois circuit court civil litigation. This Note explains how to calculate the response deadline, preserve, collect, and review responsive documents, implement a litigation hold, avoid discovery sanctions or negligence liability for spoliation, and draft the RFP responses, including how to assert objections and privilege claims. This Note also explains how to produce documents and draft a privilege log.