A collection of blog posts about retail
A data science case study on the business of Halloween. Walmart and wholesale data from Hugging Face show when stock is bought, when shoppers buy, and how much a store should order when it can't know, with the full notebook to run yourself.
Most corporate ad dollars now chase people on their phones. I approach them face to face on the floor at Home Depot. A data-backed look at digital ad spend, what it actually buys, and why in-person selling is the harder, grittier game that still works.
Analytics engineer turning fragmented tidbits into confidence: messy data structured, patterns caught early, answers made plain with AI.
Copyright 2026 Christopher A. Rotunno. All Rights Reserved
