A fantastic guide on how to test your business ideas with minimal effort. It describes many ideas from The Right It by Alberto Savoia.

You will learn why most products, even if competently executed, will fail in the market. And, more importantly, how to formulate hypotheses, collect data, and validate hypotheses by experimenting.

You can get this book for free

You got this (PDF): https://www.pretotyping.org/pretotype-it-10th-anniversary-edition.html