Sean D'Souza

Sean D'Souza is the founder of Psychotactics and author of 'The Brain Audit'. His newsletter distills decades of expertise in marketing psychology, pricing strategy, copywriting, and cartooning into actionable lessons. Known for his storytelling-driven teaching style and deep psychological insights, Sean has built a loyal following since 2002. This collection includes 1,173 newsletters spanning 2015–2026 and deep-dive analyses in both English and Thai.