Books

Books by John Brennan on generative engine optimization, intelligence oversight, and the future of analytics.

• Students of the Book (2026) — A historical account of captivity from the first war of this century.
• The GEO Handbook: Generative Engine Optimization for the Answer, Citation, and Agent Era (2026) — The definitive guide to GEO, focusing on visibility and influence inside synthetic answers. Learn how to get your brand cited by ChatGPT, Perplexity, Gemini, and other AI systems.
• Intelligence Oversight Reconsidered: Assessing the 1975-1976 Intelligence Oversight Reforms (2017) — A quantitative analysis of the effects of the mid-1970's intelligence oversight reforms, comparing intelligence outcomes between the National Security Act of 1947 and the Church and Pike Committees.
• The Future of Analytics: the trends, the implications, and who will lead (2010) — A forward-looking analysis of analytics as an emerging art and science, examining trends, implications, work roles, and leadership in the data-driven future.