diff --git a/AiBook_Spec.md b/AiBook_Spec.md
index c2e3a46..f25c0b3 100644
--- a/AiBook_Spec.md
+++ b/AiBook_Spec.md
@@ -1,5 +1,5 @@
 ---
-title: "AIBook.fun — Product Specification"
+title: "AiBook.fun — Product Specification"
 type: spec
 status: draft
 owner: Patrick (Product)
@@ -8,7 +8,7 @@ last-updated: 2026-08-31
 companions: [AiBook_PRD.md, AiBook_Implementation_Plan.md]
 ---
 
-# 📚 AIBook.fun — Product Specification
+# 📚 AiBook.fun — Product Specification
 
 > **Status: DRAFT.** This spec is the *thinking* behind the product — the vision, the
 > principles, the model. The [PRD](AiBook_PRD.md) turns it into requirements; the
@@ -22,7 +22,7 @@ companions: [AiBook_PRD.md, AiBook_Implementation_Plan.md]
 
 ## TL;DR
 
-AIBook.fun is a **living, crowd-written field guide to using AI agents responsibly at work.**
+AiBook.fun is a **living, crowd-written field guide to using AI agents responsibly at work.**
 Its unit of value is a **workflow you can run** — a documented, tested recipe for doing a real
 job with AI, including the guardrails. It launches as an annual subscription via Kickstarter on
 **September 26, 2026**.