Business analysis
Illustrative sample · Synthetic data
SQL report reconciliation
A database exercise explains why sales can be counted twice and how to check the correct total.
Work samples
Working notes
& examples.
SQL queries, a campaign comparison, a customer memo, and plans for marketing and operations. Each example includes its assumptions and working files.
About these samples
Download sample collection ↓The customer memo uses historical public data. The other exercises use synthetic data or proposed scenarios. Each includes its assumptions, a takeaway, and working files.
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Marketing analytics
Illustrative sample · Synthetic data
Campaign conversion readout
Compare two signup rates and decide whether the difference is clear enough to recommend a change.
Marketing operations
Illustrative sample · Proposed journey
Three email onboarding plan
A plan for three introductory emails explains who should receive each message, what action it encourages, and when messages should stop.
Business operations & AI
Illustrative sample · Planning estimates
Research workflow pilot
A short proposal compares a manual research process with an automated approach and explains how to test it.
Market research & insights
Public data analysis · Portfolio companion
Customer purchasing mix memo
Compare what retail customers bought with purchases by hotels, restaurants, and cafés using historical public records.
Product marketing
Illustrative sample · Fictional product
Product messaging brief
An exercise in explaining a product clearly, supporting each promise, and planning how to test the message.
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