Short answers, pulled from the story.
Jude Watson wrote the Star Wars: The Last of the Jedi novels between 2005 and 2008. Lucas Licensing commissioned the project to fill a gap in the timeline after Episode III, Revenge of the Sith.
The first book, Underworld, arrived on shelves in 2005. Subsequent titles followed annually through 2008.
Obi-Wan Kenobi hides on the planet Tatooine while the galaxy burns under Imperial rule. He watches young children play in the dust of Mos Eisley without knowing their fate.
Lucasfilm reclassified the Star Wars: The Last of the Jedi series in 2014 to remove them from current canon continuity used by new films and shows. Before that date, these novels were part of the official Expanded Universe timeline.
Readers aged thirteen to eighteen picked up Underworld at bookstores across America. Sales figures showed strong performance during the holiday seasons of 2005 through 2008.