Published my book "The Python Guide for Beginners" in PDF for free.
The book got me more than 3000 subscribers to my mail list.
I had lots of positive feedback, and I am really happy with the final result.
In a bit more than 100 pages, I focus on what you will need to use most of the time to solve most of the problems as a beginner.
Learn the core of the language in a matter of hours instead of weeks!
The book is available at: