The neat thing about drywall compound, also called joint compound or just “mud,” is that you can apply it over existing walls to smooth away roughness or for use as a new drywall texture.
How to Remove Unwanted Texture From Your Walls
Perfectly Smooth Walls: A Skim Coating Tutorial - Room for Tuesday
How to Skim Coat to Remove Wall Texture - Sawdust Girl®
How to Repair Hairline Cracks in Plaster
How to Repair Textured Drywall (with Pictures) - wikiHow
How To Skim Coat Textured Walls: DIY Smooth Walls - Simply Aligned
How to Remove Venetian Plaster From Walls
Do Modern Homes Have Textured Walls? — Studio Croft
How to Fix Blistering Plaster in an Old Home