Applique is sewing or fusing one fabric on top of another. There are many techniques used for applique making this a versatile technique.
How-To: Reverse Appliqué - Make
Applique
What is Applique & How to Applique Correctly for Beginners
Applique Work
Learn the History of Appliqué and How to Create Your Own Fabric Art
What is Applique & How to Applique Correctly for Beginners
Applique Techniques - The Sewing Directory
What is Ribbon Applique?
A Complete Guide to Getting Started with Felt Appliqué — Beth Colletti Art & Design
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What is Applique and Applique Techniques
What is Raw Edge Applique?