The CalCOFI program produced a library of reports including important refinements to sampling methodologies that resulted in manuals for the surveys. The spatial and temporal distributions of measured physical variables (such as temperature, salinity, nutrients and oxygen) and derived physical variables (such as density, dynamic height anomalies, and geostrophic flows) were analyzed and published as a series of atlases. Biological variables including chlorophyll and zooplankton displacement volume were mapped and compiled, as were the occurrence and distributions of zooplankton and ichthyoplankton species, especially with regard to the spawning seasons of fishes. The taxonomic knowledge of ichthyoplankton was improved over the years and the depth and detail of taxonomic information improved with time. Methods were developed for estimating the biomass of commercially important fish and for tracking relative trends in abundance to facilitate more accurate and useful stock assessments for use by management. Researchers used the hydrographic and ichthyoplankton databases, and the sample collections, to underpin numerous peer-reviewed publications that are now the “classic papers” from the CalCOFI program. Virtually all of these publications, atlases and reports are publicly available on the Internet. In addition, the entire hydrographic and ichthyoplankton databases are available to the public either through web forms or by email request.