Hey, I'm Tomi Mester. This is my data blog, where I give you a sneak peek into online data analysts' best practices. You will find articles and videos about data analysis, AB-testing, research, data science and more…
100% practical 6-week data science challenge & video course — simulating of being a junior data scientist at a true-to-life startup.
Learning SQL is very useful for anyone in the online world. And it’s a definite must for Data Analysts/Scientists! Here are 8 articles to start with…
I put together a ‘Python 3 for Data Science’ tutorial series starting from the very basics. It features 9 practical articles – that covers everything you need to know!
Read these 7 free articles about Bash/Command Line and take your very first step to learn the basics of coding for Data Science!
This article is about dating and data science! Please welcome our guest author, Amy Birdee, who has done multiple data science hobby projects recently and built a truly…
Should you negotiate your salary before you get into a junior data scientist role? To start: yes! You should always negotiate. Tech companies in particular EXPECT you to…
This article is about dating and data science! Please welcome our guest author, Amy Birdee, who has done multiple data science hobby projects recently and built a truly…
In this article, I’ll show you a few junior data scientist job interview questions… And also how to answer them. Before we get started… This article is part…
Scraping one web page is fun, but scraping more web pages is more fun. In this tutorial you’ll learn how to do just that; along the way you’ll…
Data Science on the job is different from the things you see about it in tutorials. I wish someone would’ve told me about these when I was an…
You have an awesome resume, a jaw-dropping portfolio, and a Pulitzer Prize winning cover letter. What’s next? Now we’re getting to the good stuff: applying for a data…
As a data scientist or data analyst, sooner or later you’ll come to a point where you have to collect large amounts of data. Be it a hobby…
This article is all about how to make your application stand out for data science and analytics positions. I’ll show you what will catch recruiters’ eyes when sifting…
Hello fellow job seekers! My name is Peter. About a year ago, I was in your shoes. I wanted one of those high-paying jobs in data science and…
James Rice was a participant in my 6-week data science course (The Junior Data Scientist’s First Month). After finishing the course, he started a cool hobby project and…
Tamas Ujhelyi was a participant in my 6-week data science course (the Junior Data Scientist’s First Month). After finishing the course, he started a cool hobby project and…
In this article, I want to quickly show you how websites collect data. It’s important to know this for two reasons: If you are a website visitor, it’s…
In this article, I’ll answer a question that frequently comes up in my online courses, which is: How do you upload a dataset (e.g. csv, txt or tsv…
When it comes to learning data science, there are many, many resources around the internet. Many articles, many online courses, many Youtube channels, and so on… You have…
Finding a data science mentor is tricky… Well, finding a mentor for any profession is tricky! You know, the best minds that you would love to learn from…
There are three popular languages for data scientists: SQL, Python and R. I create a lot of tutorials about SQL and Python on my blog… But I never…
I get way too many questions from aspiring data scientists regarding machine learning. Like what parts of machine learning they should learn more about to get a job….
I’ve talked a lot already about the three primary skills you need to know for data science: coding, statistics and business thinking… But it’s worth listing those secondary…
Is it important for data scientists to have domain knowledge in a specific field? In this article, I’ll answer this question. As you might have heard from me…