the NJO book are all sequential, so if you want to read, start with the first one...
Vector Prime
Here is the full NJO timeline:
The New Jedi Order:
Vector Prime (Del Rey/Ballantine)
____ Dark Tide (Del Rey/Ballantine)
____ __ #1: Onslaught
_______ #2: Ruin (to chapter 34)
___ Agents of Chaos
_______ #1: Hero’s Trial
_______ #2: Jedi Eclipse
___ Balance Point
___ Edge of Victory
_______ #1: Conquest
_______ #2: Rebirth
___ Star by Star
Dark Journey
___ Enemy Lines
_______ #1: Rebel Dream
_______ #2: Rebel Stand
___ Traitor
____ Force Heretic
_______ #1: Remnant
_______ #2: Refugee
_______ #3: Reunion
___ The Final Prophecy
___ The Unifying Force
LOL read it. After I read the Thrawn Trilogy I jumped right to the NJO. That was my mistake, you miss out on soo much. I recently went back and I am currently reading all the novels that I missed. And yes I started with the Thrawn trilogy again, actually before Thrawn with the courtship of Leia. I am currently at the stupid young jedi knights novels... tedious reading as it was meant for young teens, but you will be happy yea read it once you pick up the NJO books.