This book is for people who want to know why records for the same company end up tallied separately, system by system.
What makes two records "the same company," and what does one row actually count?
Chapter 1 starts with a customer list to deduplicate, where every system uses its own ID and writes the company name its own way.
If you'd rather learn how to decide what counts as one thing than one more way to clean up spellings, start right here with Chapter 1.
Free sample of *The Craft of Structuring: Deciding What Counts as One Thing*: the front matter and Chapter 1, "From Messy Data to Multiple Projections", as PDF and EPUB. The full book is here:
https://buymeacoffee.com/asopitechia/e/581508