The way a book interior is designed has a part in whether the book will sell or not. A customer will not read—or buy—a book that is designed in a way that is difficult to read. If the type in your book is too small, or the spaces between the lines are too narrow, many prospective customers will move on to another book. Your goal with book design is to create an interior that is inviting, pleasing, and easy to read. This involves good use of fonts, word spacing, leading, line length, and alignment. Here are some techniques that professional…