Once you begin to feel that your book’s scope is resonating with your future readers, it’s time to shift toward testing the Effectiveness of what it will contain. Which begins by writing down a first guess at a detailed table of contents. Fill your ToC with takeaways, not clickbait Your ToC is the blueprint of your book’s education design. To serve its purpose as a tool for design and feedback, it must be built from: Clear, descriptive language Detailed subsections.