Originally Posted by
PGoodman13
That said, both LUG and Decipher stick much closer to the on-screen canon than FASA did, mostly because there's more of it and mostly because Paramount got a little more anal about things. Decipher sticks more to on-screen canon than LUG for the same reason.
All of the Decipher books, and I'm pretty sure that all of the LUG books, state on the credits page that the only things that are canon are what appears on-screen.
Decipher and LUG are much the same in terms of canon and source material; the systems are quite a bit different between the two, however.
You're best off getting STAR TREK Star Charts, a non-RPG book, for your maps, etc. There's not a lot of maps available in the Decipher game, at least.