Thanks guys.
@Reach: As LunyKimberly pointed out this is more the problem of the Twinbrook library than of the bookshelf. Also, as far as I remember there is a challenge for the Architect career to stock up the library. So it's not really a bug (it's just annoying if you don't want to play that career)
@drake_mccarty: The items in the compilation sets are the same that you get if you buy them in the Store separability. They might get updated one day, but then they get updated for everyone.
I'll be doing so updating well ... when I have time to spare for it (not really in the mood atm)