Personally a bit disappointed that the ST reference books we're getting now all seem to be aimed at children/younger readers
There have always been ST books aimed at younger readers and, let's face it, forty years ago we were all "younger readers", too!
When I first got into Star Trek, my first purchases (at age 21) included things like View-Master reels, the "ST:TMP Pop-up Book", the "ST:TMP Make-You-Own-Costume Book", "Monsters of Star Trek" and the "Intergalactic Puzzle Book", all skewed young enough that I kinda hid them from my parents. I think I had all of those in my small collection before I decided I also needed the "ST Concordance", "The Technical Manual", "Medical Reference Manual", "The Making of Star Trek" and "World of Star Trek".
I just noticed a new STNG Quote Book is being released this year. Non-fiction is back!
RAMA