BBY/ABY is used to position items along the Star Wars Timeline. BBY refers to Before the Battle of Yavin. ABY refers to After the Battle of Yavin. The Battle of Yavin in Episode IV: A New Hope occured in 0 BBY/ABY.
The Youtini Expanded Universe Ranking system is a 1-5 scale that ranks EU book quality, difficulty, and importance. Books closer to Level 1 are easier to read and understand, more important, and of higher quality.
Darth Vader is powerful. Darth Vader is ruthless. Darth Vader is evil. These are all attributes of Vader that people know instinctively to be true. However, not all books and comics featuring Vader do a great job showing those attributes. That is not the case With Darth Vader and the Ghost Prison. With the Emperor clinging to life after an attack, Vader must uncover the secrets of the mysterious Ghost Prison in a race against time. Haden Blackman completely captures the essence of Vader in this riveting tale seen through the eyes of a young Imperial cadet.
A traitorous uprising against the fledgling Galactic Empire leaves Emperor Palpatine close to death. Saving the Emperor—and the Empire—appears to be a lost cause... unless Vader can uncover the secrets of the Jedi Council and locate the mysterious "Ghost Prison." Collects the five-issue miniseries.
This is what I consider to be the gold standard for all Star Wars comics as well as any Vader-centric story. I don't even want to say anything more other than just read it. Right now. Click that Amazon button on this page, add to cart, then thank me later.