In fact, the Hallmark book from which Indian Wisdom is derived--is indeed from that Hallmark stand at the front of Book Castle.
Much amazing stuff was there--including a signed first edition of "Tropic of Cancer", just sitting in the racks for $20. I was out of work at the time, but should have gone into hock to get it. Regrets, regrets...
You know, I was trying so hard to think of any book in the house that came from there for sure, and all I could come up with is
another Hallmark book from around the exact same time-
Christmas Is Together Time (a "Peanuts" book). I have it around here somewhere, so it came off that same shelf, probably around the same time. But I know I bought other stuff there. They probably did have some great stuff- awash in a sea of more depressing bad stuff in one place than anywhere else on earth.
Sorry folks, I just can't believe anyone else remembers that store.
I used to enjoy walking the dog down there at night and stopping to read the old newspaper they posted in the corner window every single day, from exactly fifty years to the day before, under a sign that said "Fifty Years Ago Today". It was always loaded with war news, usually from the Pacific. And the (related) Hollywood store next door was great.
Trivia: did it become the Blockbuster store that the T-Rex attacks in "Jurassic Park 2"? I watched them film that sequence. If not, it was within a couple doors at most.