Hi @devwebcl
There are at least three parts in each book: the concepts/technology, your way of explaining, your stories. The first is covered to various depth and breath by different books. The second and the third are your own.
Your way of explaining is different from those of others and can help your audience learn better. It may provide a layer of refinement to what they may already know and that is highly helpful for their journey.
Your stories, your experiences are your own. These are often the things that excite me when reading a book or listening to a talk at a conference. I want to learn from a piece of experience that the speaker or the author has had.
What motivates me is knowing that I can bring a different way to explain and that I have a different set of stories to share, Constructive feedback from past readers also helps to motivate to continue to write.