The Foster Logs would need their own separate collection.
Ballantine/Del Rey last republished Alan Dean Foster's "Log" adaptations of "Star Trek: The Animated Series" for the 40th anniversary. There were five volumes in these new trade paperbacks, two "ST Logs" in each book. A then-new and different one-page introduction from the author prefaced each volume:
In "Logs One and Two", ADF discusses getting the job, his excitement about writing for ST, and the trepidation of possibly padding out 20-page scripts into 60,000 words.
In "Logs Three and Four", he mentions how some authors consider novelization assignments to be hack work, and demonstrates how "Fire photon torpedoes, Mr Sulu!" can become two paragraphs of exposition.
In "Logs Five and Six", ADF discusses Filmation's approach to animation and mentions how he recognized a friend's artwork style in a cel from TAS used on the original release of "ST Log 5".
In "Logs Seven and Eight", he talks about the day Judy-Lynn del Rey told him to start padding out each remaining script into one per book. ADF's additional Kumara the Klingon adventure in "ST Log 7" is mentioned as being ADF's rejected two-parter script pitch for the third season of TOS. He was told to resubmit for Season Four. Sigh.
(I did correspond with ADF about this anecdote; he cannot remember the name of his unfilmed episodes, sadly, and no longer has the scripts in his files.)
In "Logs Nine and Ten", ADF discusses how he deliberately kept the two strongest SF storylines to last, then worried how Larry Niven (creator of the kzinti) would react to someone else novelizing a Known Space story.
Keep in mind that each new introduction is only one page long. But irresistable to me. Had all five pages been repeated in each volume, I'd have probably only have bought the one volume, because I already have these adaptations as single volumes (Ballantine) and in the Pocket International three-volume set.