Visit the Publication Design wakelet for a list of useful websites and peruse the links and videos below to learn more about the craft.
11 Gestalt Principles of Design (Superside)
What are the Gestalt Principles? (Figma)
Gestalt Principles in Book Cover Designs (The Book Designer)
What is Color Theory? (Figma)
A short history of color theory (Rune Madsen)
Color Theory Tutorial, Concepts, Essays and Color Basics (Worqx)
InDesign Help (Adobe)
InDesign for Beginners Step-By-Step Guide (Southern Methodist University)
InDesign Tutorials and Essential Tips for every Skill Level (Redokun)