 The Office of the Historian offers e-book editions of a growing number of volumes from the series.Far lighter and more portable than printed editions of FRUS, the e-book edition offers the full content of each volume and makes use of the full-text search and other reading features of most e-book devices and applications, including bookmarking and note-taking.Unlike the web-based edition of FRUS, the e-book edition, once downloaded, can be accessed even without internet connectivity.