The CIA's one-and-only official interrogation manual was published in
1963 and has recently been made available online; this softcover edition
marks the Agency's redactions and includes the extensive descriptive
bibliography of the original. This is not a facsimile but a typeset
reference edition. KUBARK contains fascinating analysis on types of
interrogatees (and interrogators) and a number of nonviolent (as well as
violent) strategems. This is a work of historic importance and a
fundamental source document for students of the Cold War.