Here are helpful links I have referenced throughout my presentations.

Business Central Code History Repository (maintained by Stefan Maron)

Excel Report Layouts

Working with Excel Report Layouts
My Blog posts about Excel Reports

Visual Studio Code Extensions

AL Navigator
AL Object ID Ninja
AZ AL Dev Tools/AL Code Outline
Build your own Extension Pack
Create GUID
LinterCop
REST Client
waldo’s CRS AL Language Extension
XLIFF Sync

Queries for Business Central

MS Learn: Query Overview
QueryCategory Property
– allows you to put a link to a query directly on a page (no filters or additional code)
Debugging SQL Behavior

AL Language Evolution

GitHub Repository for AL Evolution
AL Guidelines
List Data Type
Dictionary Data Type
Rich Text Content
DataTypeManagement Codeunit
PageManagement Codeunit
SelectionFilterManagement Codeunit
ConfirmManagement Codeunit
Error Handling Guidelines
Actionable Errors
Actionable Errors with Multiple Actions