Guide to Microforms and Digital Resources is the internationally acknowledged standard guide to microforms, listing more than 225,000 publications available from approx. 260 publishers and distributors around the world. It has now also embarked on listing online titles and digitally-scanned research material, made accessible to the user in electronic formats. The titles listed are rare and valuable monographs, historical journals, newspapers, almanacs, and periodicals, as well as archive holdings, collections, bequests and much more. Entries contain the following information: title, subtitle; author(s), editor(s); publisher, place and date of publication; collation information; type of product; price; ISBN/ISSN; order number; publisher/distributor code; subject class. The alphabetical Author Title list comprises title entries with cross-references from authors and editors to respective titles. The Subject Guide facilitates the search for products regarding specific subjects. The classification is based on a modified Dewey Decimal Classification System. By means of the alphabetical Index of Persons as Subject, the user can see at a glance all titles or collections dealing with specific persons and their work. The Guide comes with an Index of Publishers and Distributors worldwide along with all relevant information. The eBookPLUS format comprises the content and search criteria of the printed edition and its indices, facilitating complex searches.