The Chuck Moore, John Rible, Dean Sanderson and Greg Bailey collection on Forth contains materials generated by and for the Forth community between 1970 and 2002. Types of materials in the collection include conference proceedings, journals, manuals, reference books, periodicals, and software. Most of the materials address the development of Forth as a programming language and tool. About a third of the collection is made up of conference proceedings from events such as the Rochester Forth conferences and FORML (Forth Modification Laboratory) conferences. Another third of the collection holds journals and newsletters, such as Journal of Forth Application and Research, Forth Dimensions, ACM SIGForth, ACM SIGPlan, and More on NC4000. The final third of the collection contains publications such as books and reference manuals, most of which pertain to Forth programming. Many of the books were sent to Chuck Moore with inscriptions from users of Forth. In addition to the published materials that make up the bulk of the collection, there are a small amount of program listings on paper and microfiche as well as software, including MacForth Plus and MacGDS.