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.
Tycho Celchu must make the hardest decision of his lifetime: choosing between saving his friends and supporting his cause. Disguised as an Imperial fighter pilot, Rogue Squadron flyer Tycho Celchu has successfully infiltrated the Imperial troops. But success turns sour when his TIE fighter unit encounters Wedge Antilles and Rogue Squadron! If he abandons his post with the Imperial fighters, he abandons the cause of the New Republic; but if he stands his ground, he risks killing his comrades. Either way this Rebel plays, he plays a losing game . . .