The ArcGIS Compendium

Print-ready PDFs of everything, hosted on the live site: Field Guide · Vol A · Vol B · Vol C · Vol D · Vol E · Vol F · Vol G · Vol H · Cheat Sheets · Workbook · Quiz Bank · Learning Paths · FAQ · Case Studies

Every piece was drafted by a dedicated writer agent working from a shared style guide (plain-English voice, exact click paths, and hard anti-fabrication rules for prices, version numbers, and menu locations). A second, independent reviewer agent then re-read each chapter, cheat sheet, quiz, and the FAQ as a skeptical technical editor and rewrote it in place. The review passes made substantive corrections across the set, typically:

• Fixing factual slips — a backwards buffer-distortion example in the projections chapter, a mis-stated tile-layer claim, an implausible Living Atlas example.
• Softening fabricated precision — invented percentages, over-exact UI paths for controls Esri renames often, credit-cost specifics.
• Glossing jargon at first use and cutting throat-clearing.
• Verifying that checkable specifics (WKIDs, datum drift figures, projection distortion factors) were actually correct before letting them stand.

Caveat worth keeping: this documentation was machine-written and machine-reviewed. Concepts and workflows are solid; exact menu wording drifts with Esri's release cycle, so where the text says "in the layer's item page settings," trust the destination more than the literal label.