It's what you do before the storm comes that most determines how well you'll do when the storm comes.

Jim Collins

Some of the things I use as a mentor:

Different roles of an entrepreneur

An entrepreneur fulfills multiple roles that often overlap and sometimes conflict with each other. How do you balance?

Startup Pitch Deck as Businessplan

A pitch deck for investors appears to work well as a business plan.

The most important KPI's for your company
The pirate model AARRR is a framework that helps to identify and measure a company's most important KPIs.

The Lean Startup

Learn the most important things as efficiently as possible to determine the direction of your company.

Some of the books that inspire me: