If you ask a hundred bookworms to identify the most essential ingredient for a must read book, there’s almost no chance you would get unanimous agreement. All readers have differing sentiments that affect what they want and enjoy most in a work of fiction. For many readers there will be one specific box that absolutely needs to be checked in order for a book to be essential reading. For some, pacing is the priority, for others it’s writing style, for some it’s originality, while for others it might be thought-provoking themes and ideas. I’m not going to attempt to provide a definitive answer because there isn’t one. But I will give you my thoughts on what I consider to be the most important constituent of a good story, the absence of which always detracts from my reading pleasure.