A particle-physicist-turned-journalist traces cryptography's history as an escalating duel between code-makers and code-breakers — Linear B to quantum cryptography

A Bell Labs engineer who worked alongside Claude Shannon gives information theory a real mathematical introduction — dense, dated in places, but genuinely rigorous.

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"A historian's disturbing, contested account of Hans Asperger's role in Nazi Vienna's child euthanasia program — serious history, not a casual read.

Peter Godfrey-Smith argues that intelligence evolved independently in cephalopods and vertebrates, using the octopus's strange, distributed nervous system to ask what a genuinely alien mind might be like. Read alongside Ray Nayler's The Mountain in the Sea for the full effect.

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"A physicist's biography of Feynman that centers the actual science — path integrals, Feynman diagrams, and the fields his tangents ended up seeding.