Data & Analytics
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Google Sheets vs Excel: Which Is Better for Your Work in 2026?
A use-case comparison of Google Sheets and Excel covering collaboration, data limits, advanced analysis features, AI and pricing models.
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Everything we have written about data analysis.
Data & Analytics
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Excel Pivot Tables Tutorial for Beginners: Build Your First One Step by Step
A hands-on pivot table tutorial that builds a summary from a simple sales table, then adds filters, date grouping, slicers and a PivotChart.
SQL for Beginners: The Queries You Need to Know
Learn SELECT, WHERE, GROUP BY and JOIN using one realistic coffee shop sales table, with every query's real output shown so you can follow along.
Data & Analytics
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Statistics Basics for Data Analysis: Averages, Variance, Correlation and Significance
A plain-English guide to the 4 statistics ideas behind most business reports, averages, variance, correlation and significance, with worked examples and Excel functions.
What Is a Jupyter Notebook and How Do You Use It?
A plain-English first session for analysts moving from spreadsheets to Python: what a Jupyter notebook is, how to open one and how to load and explore your first file.
Python vs R for Data Analysis: Which Should You Learn?
A practical comparison of Python and R for data analysis: libraries, learning curve, job demand and which one fits your goals.