Archive - Data Analysis Journal

Refresher on Visualizations - Issue 295

Charts, dashboards, and storytelling basics - what actually matters when showing data.

9 hrs ago • Olga Berezovsky

Refresher on Experimentation - Issue 294

A consolidated guide to statistics, tools, best practices, and advanced experimentation

Dec 10 • Olga Berezovsky

November Recap: Before You Trust That Lift

Your monthly recap of the latest trends, market shifts, and updates in data science and analytics

Dec 3 • Olga Berezovsky

November 2025

Churn: Why Most Teams Get It Wrong - Issue 292

How to build accurate churn reporting for your product, plans, and revenue model.

Nov 26 • Olga Berezovsky

Structuring Data & Analytics Teams for Real Impact - Issue 291

How org structure shapes analytics insight, governance, and the quality of every decision.

Nov 19 • Olga Berezovsky

10 Must-Know Concepts Every Analyst Should Know - Issue 290

From academia to industry - the core analytical principles we rely on every day.

Nov 12 • Olga Berezovsky

October Recap: A Reality Check for Analytics

Your monthly recap of the latest trends, market shifts, and updates in data science and analytics

Nov 5 • Olga Berezovsky

October 2025

10 Experiments Every Data Team Should Run - Issue 288

Top must-try experiments every data scientist should know - lessons from StatSig Summit.

Oct 29 • Olga Berezovsky

Reinventing How Analysts Work | Barry McCardel

How AI is reshaping how teams explore and communicate with data.

Oct 22 • Olga Berezovsky and barry

How Notion Scaled Experimentation - Issue 286

How the team grew and scaled A/B testing without losing rigor - lessons from StatSig Summit.

Oct 15 • Olga Berezovsky

When Simple Becomes Tricky: Should Discounts Be Included in MRR? - Issue 285

So many ways to screw up your reporting.

Oct 8 • Olga Berezovsky

September Recap: When AI Meets Analytics (and Doesn’t Break It)

Your monthly recap of the latest trends, market shifts, and updates in data science and analytics

Oct 1 • Olga Berezovsky

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