The significance lies in multiple aspects. First, it helps to bridge the gap between different Star Wars eras. It provides more backstory to the events following the fall of the Empire. Second, the character of Thrawn is so well - developed in it. His strategic mind and different approach compared to other villains make the stories engaging. Third, it has influenced other Star Wars media as well, inspiring new ideas and story arcs.
Well, it's important because it gives a new visual and narrative take on the Star Wars story. The graphic novel format allows for unique interpretations of the characters and events. It keeps the Star Wars spirit alive in a different medium. For fans, it offers a chance to see the Thrawn Trilogy in a more accessible and often more vivid form.