I'm with you for sure.
The 4th edition of Silman's How to Reassess Your Chess is 7" x 10" x 1.25" thick, compared to the 3rd edition's 5.5" x 8.5" x 1" thick. It's more a tome than a book. (A very good tome, but a tome nonetheless).
However, when talking about pocket editions, I can't help but shake my head at the cover picture chosen for Lev Alburt's Chess Training Pocket Book:

Just embarrassing! I ripped the cover off of my copy so I could actually take the book out of the house (which is rather the purpose of a pocket book).
Interestingly, they made a slight change (complete with some photoshopping on Lev's shoulder and chair) for the sequel to this book:

Is it just me or are most modern chess books published in a 8.9 x 6 x 0.6 inches format or larger? Some of my favorite books, such as Euwe's The Development of Chess Style (McKay, 1968) , were published in a pocket-sized 8.6 x 5.5 x 0.9 inches format, and they are tiny when compared to the latest publications:
But part of the charm of the "old" chess books was that you could... put them in your pocket, and read while travelling. Now this charm seems to be gone. Yes, we get a lot of information for the money, but in brick-sized publications. Anyone else nostalgic for the small format?