Library Technology Reports (vol. 49, no. 3) "E-book Platforms for Libraries" provides an overview of the various types of e-book platforms available to academic, research, public, and K-12 librarise in the United States (an beyond). The focus is on the products that house electronic versions of books also available in print. A directory lists platforms and identifies the type of platform, e-books, subject areas, and library market; main subject areas; and business models. Four summary tables help readers compare options.