I recently wrote a guest article on that subject for A Writer's Path - you can check it out here.
In this article, I explained 3 different models of time travel, explored how to use them to their best effect, and revealed how to avoid some common pitfalls and plot holes that time travel can create.
So if you have a time traveller in your story, or you just want to learn more about this fascinating fictional phenomenon, click the button below to check out the article: