2 resources from Portfolio / Penguin we point founders to, and the questions each answers.
📖 Book
✓ Link checkedPaidIntermediate
Why we picked it
The definitive playbook on distribution, it catalogs all 19 channels and gives you the Bullseye framework to systematically find the one that works. Essential for anyone thinking channel-first.
Why we picked it
Once you have found the activation moment, the next question is how to turn that single spark into a returning habit, and Hooked is the canonical explanation of the loop that does it. Nir Eyal's four-step model (trigger, action, variable reward, investment) gives you a concrete vocabulary for designing onboarding so the aha moment leads into a reason to come back. Read it as a design lens, not a manipulation manual: the same loop that builds a habit is the one that makes activation stick.
Activation is only the start; a habit forms when users cycle through trigger, action, variable reward, and investment repeatedly.
The "investment" step, where users put in data, effort, or content, is what loads the next trigger and pulls them back, so onboarding should ask for a small investment right after the aha.
Variable rewards (not fixed ones) are what keep people returning, which is a useful check on whether your post-activation experience actually earns the next visit.