U.S. Congressional Serial Set, Maps With more than 74,000 maps, this database provides a foundational resource for American history, society and politics. Features include: search and browse capabilities designed for maps; ability to search specifically by dates related to the maps rather than the dates assigned to Serial Set publications; indexing of subject and geographic locations specific to the maps; citation records providing map title, Serial Set publication, map date, issuing body, cartographer or author, coordinates, scale, content notes and geographic location and subject indexing; linking of related maps within a publication or multi-page maps to enable easy navigation; a process based on physical review of original publications to ensure that a high-resolution image and citation record is created for every map; citation records that can be emailed with a click; provision of suggested related search terms based on the acclaimed Readex Congressional Thesaurus.