Modules: Leadership federal, Leadership Congress, Leadership state & local, Leadership companies, Leadership media, Leadership law, and Leadership nonprofits. Contains data corresponding to 14 leadership directory yellow books: Congressional yellow book, Federal yellow book, State yellow book, Municipal yellow book, Federal regional yellow book, Judicial yellow book, Corporate yellow book, Financial yellow book, News media yellow book, Associations yellow book, Law firms yellow book, Government affairs yellow book, Foreign representatives yellow book, and: Nonprofit sector yellow book. Description based on contents viewed February 2, 2018; title from home page.

Allows searching and browsing within individual directories or across all directories using single or multiple criteria, such as name, job title, industry, and geographical location.