COMMENTARY INDEXES
AND INTRODUCTORY ESSAYS
	ERM supplies commentary in a number of forms, some of which are accessible here, while others are accessed through the Works Indexes or Major Manuscripts Indexes.
	The Commentary Indexes list titles of Notes, which are free-standing and hyperlinked throughout the edition. The reader can arrange the titles list in two ways:

•	By alphabet.
•	By topical cluster.
	Other commentary forms the Apparatus Pages for individual Works and for Major Manuscripts, accessed respectively through the Works Indexes and Major Manuscripts Indexes. Text Pages for individual Works also often hang Annotations from points in the text needing specific clarification. See also the Plan of the Archive.
	The Introductory Essays supply researchers interested in a specialized topic with a guided tour of the archive. The essays are not meant to be exhaustive but to provide a discursive overview, and to highlight texts likely to open paths to exploration.

COMMENTARY INDEXES
Alphabetical Index
Topical Index
•	Bibliographic
•	Biographical
•	Cultural, literary, artistic, historical
•	Geographical

INTRODUCTORY ESSAYS
•	Bibliography
•	Education
•	Fine Arts
•	Literature
•	Mathematics
•	Natural Science
•	Performing Arts
•	Religion
•	Travel

See also the Works Indexes Page; the Major Manuscripts Indexes Page; the Timeline and Map Tool; and the Advanced Search Page.