Which books for an intermediate player to improve?

You might find something of interest in this list of good chess books...
http://www.chess.com/forum/view/chess-equipment/good-chess-books-for-beginners-and-beyond
Enjoy!
Any other recommendations would be welcome.
The Soviet Chess Primer by Ilya Maizelis re-published in english in 2014 by Quality Chess it's really good if you want to save big bucks get that and skip the rest until your a player of reasonable club standard 1800-1970 strength.
Only buy the best books like Bobby Fischer never settled for poor quality or mediocre material get full value for your money.

glossaries of chess....
https://en.wikipedia.org/wiki/Glossary_of_chess
http://www.arkangles.com/kchess/glossary.html

I am not looking for a beginner's book, or a chess glossary. I am rated over 1400 on chess.com and still going up; and solving puzzles on mobile apps that are rated 1800-2100.
I am looking for a book, or a set of books, that can help me move to the next level - i.e. club level player.

Oh you sound like you want serious "no nonsense" training like Yusupov and a few others. Here's a link to Heisman's book list where he mentions the three advanced series.. I'll go grab the link:
Special note: The most advanced training books are the Dvoretsky series, the Yusupov series, and now Aagaard's Grandmaster Preparation series. These are all recommended for players rated 1900 looking for very serious advanced study.

On second thought, they might be a little too advanced. Well, here's the book list:
http://www.danheisman.com/Events_Books/General_Book_Guide.htm

Yea, I have seen this list before, and read reviews of many of those books. Suffice it to say, some of those are not very good books and others may be a little too advanced.
I am looking for something instructional, but that is beyond basic tactics and strategies.

There were a few books which I checked out on Amazon that didn't have good reviews. And some books didn't seem very useful. Having said that, it's still a good list. And I already own some of those books, as I mentioned in my first post (Silman's, FCO and Mammoth Book of Greatest Games).
Understanding Chess Middle Games by Nunn. A great book. You will learn many concepts from that book.

Since you're starting again:
Winning Chess Tactics by Yasser Seirawan. Focus on one book at a time and play play play. It isn't the number of books in your library that matters, and unfortunately it also isn't about how many books you have read as not all of them are useful...

You need look no further than Yusupov's 9 volume series:
https://www.newinchess.com/Yusupov_s_Award_winning_Training_Course_-p-2950.html
I am an intermediate player. I used to play on a HS chess team some 15 years ago, but have played very little since then. Very recrntly I have gotten back to playing chess and would like to get some books which can help me improve.
I have 6 chess books, 4 by Silman (Reasses/Amateur/Workbook/Endgame), FCO by Van der Sterren and Mammoth Chess Book.
I have placed some 20+ chess books on my wishlist, including some by Nunn, Seirawan, Watson, Soltis and some classics.
Any other recommendations would be welcome.
Thanks!