Chapters serve as narrative structure containers, grouping the plot components of the broader work and allowing the reader to take a breather and assimilate what they've learnt. A short tale may be read in one sitting, but a novel is generally divided into manageable sections, resulting in a book that can be readily reread whenever the need arises. This is particularly important for writers who want their work to have longevity - it means you don't have to worry about readers losing interest before they've had a chance to finish the story. Chapter titles are written in English using an initial capital letter because books are usually called "chapters" rather than "sections". However, when writing articles or poems, the first paragraph of each chapter should begin with a capital letter too, so these items are called "chapters" rather than "sections". There are many ways to divide up a novel. Some authors choose one main character and develop their stories around them, while others will feature several characters and see how they all fit together. Some novels are very linear, with one clear storyline, while others meander back and forth between different characters and events. There are no right or wrong methods for dividing a novel into chapters, as long as you come up with something that works for you. In general, the more action-packed your novel is, the more chapters you'll need.