Startup Playbook - Written by Sam Altman & Illustrated by Gregory Koberger

Plot Factory - Online story planner, organizer, and writing application.

Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.

Scrivener - Scrivener is a content-generation tool for composing and structuring documents.

Founder Institute - Since 2009, the world’s fastest-growing startups have used the Founder Institute to raise funding, get into seed-accelerators, generate traction, and more.

World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.