The following consists of those books that should be on every intelligence professional's shelf; these works are considered as knowledge to be mastered. They cover lessons learned from the past and trends governing the not-to-distant future. Among these are useful references and guides for thinking and communicating analytical judgments.
Dulles, Allen Welsh, (2006). The Craft of Intelligence. Guilford, CT, The Lyons Press. This reprint is the standard, classic text on the subject and has stood the test of time despite advances in technology and the information age. Interestingly, Dulles puts heavy emphasis on open source intelligence in detecting important changes and trends. (Maj. CWO4, IA3).
Browne, M. Neil, Keeley, Stuart M. (2009). Asking the Right Questions: A Guide to Critical Thinking, Ninth Edition. Upper Saddle, NJ: Prentice-Hall Publishers. Similar to the difficulties in deriving the right equation to solve a high school worth problem in math, knowing exactly how to frame the issue and ask the right question is an essential skill in effective intelligence analysis--ask the wrong question and you will get (at best) an irrelevant answer. Essential reading for approaching intelligence analysis. (LCpl, 2nd Lt, WO, IA1).
Hall, Wayne Michael, Citrenbaum, Gary (2009). Intelligence Analysis: How to Think in Complex Environments . Santa Barbara, CA: Praeger Security International. A very dense book, best consumed in chapter-sized chunks one at a time, this is the first of its kind in outlining an intellectual topology and approach on tackling intelligence problems germaine to Irregular Warfare. Armed with this lexicon and mental framework, one is well-equipped to organize and modify existing specific analytical structured methods, applications, and techniques around it and to develop new ones. Used as a core textbook at the Advanced Analysis course for the U.S. Army Intelligence School. (GySgt, Capt, CWO3, IA2)
Informal Logic: A Handbook for Critical Argumentation, Second Edition. Douglas N. Walton. Cambridge, MA: Cambridge University Press, 2008.
This is the best single-volume treatment of rhetorical logic, a subject so essential to argue a particular position or detect logical fallacies in opposing points of view. Strongly recommended for all-source intelligence analysts at any level--tactical, operational, or strategic. While there are other books on the subject, this one is the best.
(Maj, CWO4, IA3)
Structured Analytical Techniques for Intelligence Analysis. Richards J. Heuer and Randolph H. Phearson. Washington DC: CQ Press, 2010.
This indispensable book catalogs and describes 50 of the most often used structured methods for conducting intelligence analysis. As such it replaces Morgan D. Jones's venerable, The Thinker's Toolkit.