This book has been life-changing for me.
I first read it when I was 12 and the tools inside of it helped me to get better at school and in personal development. Especially when I discovered de 80/20 principle.
I went from in all the subjects from 5/10 to have 4 honor mentions in the second year of high school.
But that is not all.
Later I went to live in Russia to develop myself as a ballroom dance competitor but I kept studying in Spain.
Then means that I literally had the books, myself, and eight final exams in four months.
I thought that would be impossible but because of these tools... I made it!!!
Thank you Tim for everything, and especially for creating in myself a constant curiosity about everything, asking questions, and finding the people who can answer them.