Before you dive into the details, you need to understand the fundamentals of typography and layout. Typography is the art and technique of arranging type, including fonts, sizes, spacing, alignment, and hierarchy. Layout is the arrangement of elements on a page or screen, such as text, images, shapes, and colors. You can learn the basics of typography and layout by reading books, articles, blogs, or online courses that cover the principles, terminology, and best practices of these fields. Some examples are The Elements of Typographic Style by Robert Bringhurst, Thinking with Type by Ellen Lupton, and Canva's Design School.