In analog photography a Darkroom “is a room with no light or with a safelight for developing light-sensitive photographic materials.”
Darkroom by photographytips.com
“Digital ‘Darkroom‘ is the hardware, software and techniques used in digital photography that replace the darkroom equivalents, such as enlarging, cropping, dodging and burning, as well as processes that don’t have a film equivalent.”
Photoshop Basic Interface by Curt Belshe
Photoshop Basic Tools by Curt Belshe
Using the Crop Tool by Curt Belshe
Using Resize and Resample by Curt Belshe
Photoshop Layer Basics Pt. 1 (YouTube)
Photoshop Layer Basics Pt. 2 (YouTube)
Levels x Curves by Greg Benz
Digital Darkroom Workflow by Curt Belshe
Creating a Contact Sheet by Curt Belshe
How to Create Contact Sheet with Adobe Bridge
https://helpx.adobe.com/bridge/using/output-module-pdf-contact-sheet.html