Blog

Data Cleaning Is the Foundation of Data Analysis. Why Data Analysis Is Actually Hard
Work

Data Cleaning Is the Foundation of Data Analysis. Why Data Analysis Is Actually Hard

12 January 2026
9 Interview Questions That Actually Decide Whether You Get the Job
Work

9 Interview Questions That Actually Decide Whether You Get the Job

12 January 2026
Four Fundamental Elements of a Successful Career Change
Work

Four Fundamental Elements of a Successful Career Change

12 January 2026
The Worst Types of Data Analysts. Who You Don’t Want on Your Team and Who You Don’t Want to Become
Work

The Worst Types of Data Analysts. Who You Don’t Want on Your Team and Who You Don’t Want to Become

12 January 2026
The Four Biggest Data Problems in Companies (And Why They Are Not About Tools or AI)
Work

The Four Biggest Data Problems in Companies (And Why They Are Not About Tools or AI)

12 January 2026
Ambition Is Not Arrogance. Why Preparation and Proactivity Actually Matter
Work

Ambition Is Not Arrogance. Why Preparation and Proactivity Actually Matter

12 January 2026
How to Find a Job in 2026. Why Old Strategies No Longer Work
Work

How to Find a Job in 2026. Why Old Strategies No Longer Work

7 January 2026
Data as the New Oil? A Real Conversation About Big Data, Scaling, AI and the Future of Tech Jobs
Work

Data as the New Oil? A Real Conversation About Big Data, Scaling, AI and the Future of Tech Jobs

7 January 2026
From Hospitality to Big Data. A Real Story About Career Change, Flow in Data, and Living Without a Strict Work-Life Split
Work

From Hospitality to Big Data. A Real Story About Career Change, Flow in Data, and Living Without a Strict Work-Life Split

7 January 2026
Don’t Plan Your Career Too Rigidly. A Conversation About Work, Ambition, and Freedom
Work

Don’t Plan Your Career Too Rigidly. A Conversation About Work, Ambition, and Freedom

15 December 2025
Why You Can’t Get a Job: On Career Change, Competition, and the Illusion of Balance
Work

Why You Can’t Get a Job: On Career Change, Competition, and the Illusion of Balance

11 November 2025
Freelancer or Full-Time Employee – The Truth About a Data Analyst’s Work
Work

Freelancer or Full-Time Employee – The Truth About a Data Analyst’s Work

11 November 2025
How Power Query Works – And Why Every Data Analyst Should Know It
Work

How Power Query Works – And Why Every Data Analyst Should Know It

11 November 2025
When Is It Too Late to Change Careers? At What Age Does a Career Switch Still Make Sense?
Work

When Is It Too Late to Change Careers? At What Age Does a Career Switch Still Make Sense?

11 November 2025
A Good Job and the Confidence You’re Missing
Work

A Good Job and the Confidence You’re Missing

10 November 2025
Motivation Is a Lie. That’s Why You’re Not Changing Your Job.
Work

Motivation Is a Lie. That’s Why You’re Not Changing Your Job.

10 November 2025
Can a Humanities Graduate Become a Data Analyst and Work in IT?
Work

Can a Humanities Graduate Become a Data Analyst and Work in IT?

10 November 2025
A Week in the Life of a Data Analyst – What My Job Really Looks Like
Work

A Week in the Life of a Data Analyst – What My Job Really Looks Like

10 November 2025
How to Really Use AI in Your Job Search — From Your CV to the Interview
Work

How to Really Use AI in Your Job Search — From Your CV to the Interview

10 November 2025
How to Analyze Election Polls – Understanding Statistical Error and Why Polls Can Be Wrong
Work

How to Analyze Election Polls – Understanding Statistical Error and Why Polls Can Be Wrong

9 November 2025
What You Need to Know in Power BI to Get a Job as a Data Analyst
Work

What You Need to Know in Power BI to Get a Job as a Data Analyst

2 November 2025
What Does a Data Engineer Do? A Candid Conversation with Nieinformatyk
Expert

What Does a Data Engineer Do? A Candid Conversation with Nieinformatyk

18 August 2025
GPT-5 vs Gemini 2.5 – A Big Test of AI Models in Analytical Tasks
AI

GPT-5 vs Gemini 2.5 – A Big Test of AI Models in Analytical Tasks

10 August 2025
Power BI is not Excel. A conversation on implementation, Copilot and training with Iga Kwiecińska
Expert

Power BI is not Excel. A conversation on implementation, Copilot and training with Iga Kwiecińska

2 August 2025
How to Become a Data Analyst with No Experience? Izabela Witczak’s Real Story
Work

How to Become a Data Analyst with No Experience? Izabela Witczak’s Real Story

11 July 2025
How to Start Analyzing Your Own Data? 5 Steps for Aspiring Data Analysts
Work

How to Start Analyzing Your Own Data? 5 Steps for Aspiring Data Analysts

10 July 2025
What to Do with a Weak Resume? 5 Strategies That Actually Work
Work

What to Do with a Weak Resume? 5 Strategies That Actually Work

10 June 2025
The Modern Programmer – Interview with Kamil Brzeziński
Work

The Modern Programmer – Interview with Kamil Brzeziński

26 May 2025
Tableau vs Power BI – My Detailed Comparison for Beginner Data Analysts
Work

Tableau vs Power BI – My Detailed Comparison for Beginner Data Analysts

8 May 2025
The Job of the Future Doesn’t Exist. Here’s Why You Should Stop Chasing It
Work

The Job of the Future Doesn’t Exist. Here’s Why You Should Stop Chasing It

6 May 2025