How to reassess your chess by Jeremy Silman is decent for intermediates I think. If you want more advanced books for 2000+ you could try Dvoretsky's Endgame Manual but if you are not quite their yet you can also learn a lot from: 100 Endgames you must know by De la villa and/or Silman's other good book: Silman's complete endgame course.
Must read chess books for intermediates that want to step up their game
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Good Chess Books for Beginners and Beyond...
https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond
Good Positional Chess, Planning & Strategy Books for Beginners and Beyond...
https://www.chess.com/blog/RussBell/introduction-to-positional-chess-planning-strategy
Hello guys, so like the title says, i would like to know which books in ur opinion are a must read for a player around mid level(1550-1850) so he or she can improve their game and eventually reach 2000 or more, even aiming for titled position.