Reviews

"The section on preparing data was a bit of a wake-up call. I used to skip straight to the analysis part, now I see why cleaning things up matters so much."

"Good starting point for beginners. No big promises, just clear explanations of the basics, which is what I actually needed."

"The visualization chapter was really useful. I liked that it showed both sides: how a good chart clarifies things, and how a bad one can mislead you without you even noticing."

"Helped me understand the overall logic behind data analysis. A useful place to begin, and I'll come back to it."

"Got the general picture of working with data without feeling like I needed a glossary open the whole time. That's rare."

"Clean structure, easy to follow. As an intro to the topic, it just works."