Olga Berezovsky is an analyst and data scientist. Born in Ukraine and based in San Francisco. She is the head of a product analytics team at MyFitnessPal and previously worked at Change.org, Microsoft, First Republic Bank, and quite a few big and small startups. Olga is also the author of the beloved analytics newsletter, Data Analysis Journal. A rare mix of practitioner insights along with thought leadership, Olga's newsletter brings a fresh perspective to the age-old problems of measuring retention and deeply understanding user behavior. Read more from Olga here: https://dataanalysis.substack.com/