Weekly Spanish-language essays that use historical figures and ideas to explore learning, long-term thinking and how we understand the world. Each issue accompanies a podcast and tells a story before unpacking a concept such as pace layers, causal reasoning or deliberate practice.

Kaiser Fung's blog covers data visualisation critique, statistics and analysis of charts and studies, often dissecting flawed graphics and reproducing published results. Each issue is a focused, carefully reasoned essay with worked numbers that teach readers how to evaluate data claims.

Recomendo is a weekly newsletter of six brief personal recommendations of cool products, apps, websites, sounds, and books, each drawn from the editors' own experience. Readers get short, curated finds they can try right away, plus a Christmas issue featuring subscriber picks.

Experimental History is a newsletter by a writer who examines claims about society, economics, and science with a data-driven, skeptical eye, debunking popular narratives like AI-driven mass unemployment and the loneliness epidemic. Readers get clear explanations of statistical pitfalls, historical context, and updates on the author's book about how scientific discovery works.