This chapter has four sections: 1. Periodicals; 2. Editions and Catalogues; 3. Bibliography, Associated Books and Articles, Histories, and Companions; 4. Some Shakespeare and Miscellaneous, including Reference Materials. These sections are not inviolable. With exceptions, this review of the year’s work published in 2020 in the areas of bibliography, textual criticism, and reference material is mostly alphabetically arranged. Within the alphabetical arrangement by author there are some exceptions where publications are grouped under the respective authors rather than on the editors of, for instance, the correspondence. There is also included in this chapter, as in previous years, work that has been missed in some of the other chapters in this volume. Readers should be aware that coverage is largely limited to those items that have been received by the contributor in a year dominated by the virus! Thanks are due to James E. May, who contributed the section on the Eighteenth-Century Intelligencer, Brent E. Kinser, Andrew McAinsh of the Edinburgh Bibliographical Society, Professor Patrick Scott, Liam Sims of the Cambridge Bibliographical Society, Professors Tianhu Ho and Ken Womack, and Jan Webster for their assistance.