Viral Loop Fundamentals — Study Resources & PYQs

Curated resources, past papers and PYQs for Viral Loop Fundamentals.

Study resources

Lenny's Newsletter (Article) — A widely read current newsletter on product and growth, with deep dives on funnels and experimentation. Background reading/viewing for: Viral Loop Fundamentals.
Reforge (Article) — Reforge's material on viral loops and referral design. Relevant to: Viral Loop Fundamentals.