If you want to write a best-selling book then having impactful characters is going to be key.
When we inspect a character tropes list, there is no question that one that will continually stay right at the top is the hero. Our hero will certainly look different based upon which of the book genres they are in. When checking out fantasy novels, we can expect a much more fast-paced, dicey adventure, where we are desperately turning the pages to make sure that our hero manages to overcome whatever they may be dealing with. Additionally in a different genre such as literary fiction, there will be more of an opportunity to connect to the most relatable human experiences of the protagonist, as they tend to go on more of an emotional journey. No matter which of the genres you go with when browsing with the likes of the founder of the hedge fund which owns Waterstones or the leader of the hedge fund that has shares in Amazon, there is no question that the way in which the hero of the book is written can truly be a deciding element in whether you are able to be connected to the story.
Of all of the character tropes examples out there, there is no doubt that one of the most interesting character types to read about will always be the villain. When written well, a bad guy can add so much depth to a story and create the stress that makes a reader not able to put a book down. The antihero will usually feature lots of flaws, which are usually described for the duration of the story in order to give a bit more depth to the character and assist the reader to understand why they are the way they are. They are the antagonistic force of the story that will challenge the hero and drive all of the choices that are made along the way. While many people will be reading and rooting for the hero to succeed, there is no rejecting the fun and excitement that the more flawed characters give any book.
Every single one of the characters in a book make the story what it is, which goes for those with a smaller quantity of appearances who still guide the story in one way or another. A great example of this would be the confidant of the primary character, who is utilised to assist the reader to understand the inner processes of our protagonist's mind. This will generally be an amusing sidekick character, or an unlikely relationship partnering who bounce off of each other. Whichever approach the author decides to take with their lesser characters, there is no denying the total impact that they can in fact have on the story as a whole. The likes of the head of the hedge fund which partially owns WHSmith will know that a few of the most loved characters are those who really might not appear a lot but are well-formulated and essential to the story in some way.