Data Analysis Journal

The Biggest Data, Analytics, and AI Conferences of 2026 - Issue 305

A consolidated calendar of the major global events across analytics, data science, and data engineering to help you plan your 2026 conference schedule.

Mar 4 • Olga Berezovsky

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February 2026

How Amazon Runs a Weekly Business Review

Tools, cadence, and operating principles to make your WBR drive decisions and accountability - guest post by Nick End (Row Zero)

Feb 25 • Olga Berezovsky and Nick End

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All Things ARPU (and Why Most Teams Use It Wrong) - Issue 303

When to use ARPU, when to avoid it, and how it quietly breaks A/B tests and profitability assumptions

Feb 18 • Olga Berezovsky

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More Plans, Faster Growth? - Issue 302

ChartMogul analysis: how plan count relates to growth

Feb 11 • Olga Berezovsky

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Who Owns Growth? (And Why Analytics Pays the Price) - Issue 301

Why marketing and product see different realities, and how analysts bridge them without breaking trust.

Feb 4 • Olga Berezovsky

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January 2026

Celebrating 300th Newsletter 🎉

Reflections on writing, analytics, and building something that lasts.

Jan 28 • Olga Berezovsky

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KPI & Metrics Checklist

A quick metrics reference for product planning, reviews, and stakeholder conversations

Jan 21 • Olga Berezovsky

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What “Normal” Looks Like: A Guide to Baselines - Issue 299

The starting point of every good analysis: how to define, calculate, and use baselines.

Jan 14 • Olga Berezovsky

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Anticipating 2026: Top Trends in Analytics - Issue 298

The key movements shaping analytics, the analyst role shift, and how to prepare for 2026

Jan 7 • Olga Berezovsky

15

December 2025

Goodbye 2025 🎄 - Issue 297

A recap of 2025, confetti, gratitude, and what’s coming next!

Dec 31, 2025 • Olga Berezovsky

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Refresher on Metrics and KPIs - Issue 296

An evergreen guide to the metrics you’ll use for experimentation, analysis, modeling, and forecasting.

Dec 24, 2025 • Olga Berezovsky

12

Refresher on Visualizations - Issue 295

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

Dec 17, 2025 • Olga Berezovsky

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