Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
Xmind - Xmind is a brainstorming and mind mapping application.
Top of the Lyne - Growth strategies and the weekly news from the best product-led SaaS companies (Figma, Calendly, Notion, and more) for founders and growth leaders!
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.