Testimonials: what people say about me and my work

Check my Upwork Profile to see my Portfolio and Reviews from some of my clients.


I recently stumbled on a course on Intro to Deep Learning with Pytorch on Udacity and I found DL even more interesting. Before this, I had no prior knowledge of Deep Learning, less on Numpy, Pandas, and worst Python.

To be able to go through the course I had to make much research to fill in the gap. In the course of my research, I had to read books, watch videos that explained the concepts but never explicitly enough. I had to move to more advanced concepts while missing the basics. I had a hard time going about this until I came across your book.

It’s so clear and concise just the expected but well explained and touching the core concepts. I found it awesome. I am writing you to say thank you. It greatly helped me…

Brian Williams, Cameroon

I’ve just finished reading your “python for beginners” book and want to say that it is a very nice and well structured book! It teaches consistently from easy to not very easy in a proper way, which I really loved! Thank you!

Vladimir Dolzhnikov

Thank you for the book. I’m trying to get my daughter started on Python. You explain the subject very well that should make it easier to learn.

Thank you.


Gerry Laheen


Thanks for the Python book. As a computer science teacher of 14-18 year olds, some of which will be learning Python for the first time it will be extremely useful; especially while remote teaching.

Thanks again, I will give feedback when I have used it with classes.

Andy Johnson

Thank you for writing a really comprehensive book, I had lots of fun learning! I am now moving on to the next step of learning OpenCV to do image detection and the basics knowledge I have gained from your book really helped a lot.

Once again thank you so much!

Dai Yue, Singapore

Dear Renan,
I love your Python Guide for Beginners! I teach Scripting & Automation at the PXL University of Arts and Sciences in Belgium.

20 lessons out of the 28-lesson course deal with learning Python and using it for automation. It’s part of a highly practical 2-year system & network degree.

Your guide has the right balance I was looking for between learning as a beginner and a starting point for python reference information. More specific details can always be easily found elsewhere, that is not the aim of the book.

I am planning to use your book as our base course book this year (we start on Monday :^). I will not distribute copies myself, but direct the students to https://renanmf.com/ where they can subscribe to your newsletter and download your free book.

So thank you so much for all of your effort, you save me a ton of work. I was planning to start on my own guide as most of the books out there are not what I’m looking for. And thank you for this really great book as a result of all your work. I’m positive it will help a lot of people to learn python. I’ll keep you posted on how it went after the course.

Met vriendelijke groeten,

Tom Cool.
Lector Scripting & Automation
Hogeschool PXL

Hey Renan,

I am just now in the world of programming, so I’m just working on the basics of python, 
and I read all of your newsletters and I just get such valuable knowledge from your emails. 
Keep doing the same work buddy, keep it up.

Kanish – Tamilnadu, India