Assess the space before decorating
Start with how a room is used, its light, and its proportions before choosing furnishings. Analysis precedes decoration.
Mary Gilliatt's Interior Design Course (Decor Best-Sellers)
3 ideas
Color, texture, and lighting fundamentals
The course teaches the core elements of palette, materials, and layered lighting. Mastery of the basics drives every scheme.
Budgeting and sourcing a scheme
Practical guidance covers furniture arrangement, window treatments, and controlling cost. The book treats design as an executable project.