"Chess Structures: A Grandmaster Guide" by GM Mauricio Flores Rios
advanced
Chess Structures - A Grandmaster Guide: http://www.amazon.com/Chess-Structures-A-Grandmaster-Guide/dp/1784830003
Also check out the blog Mauricio created in connection with his book: http://chess-structures.com/
Be alert when you have this Pawn Structure on the Board | Carlsbad Structure | GM Alex LendermanBe alert when you have this Pawn Structure on the Board | Carlsbad Structure | GM Alex LendermanChessfactor
intermediate
How to play with Isolated Pawns | Pawn Structures | Advanced Level | GM Alex LendermanHow to play with Isolated Pawns | Pawn Structures | Advanced Level | GM Alex LendermanChessfactoradvanced
Middlegame Strategy #001 Spassky vs Averbakh Exploiting Pawn WeaknessesMiddlegame Strategy #001 Spassky vs Averbakh Exploiting Pawn WeaknessesChessexplainedadvanced
Understanding Pawn Levers - Strategic Planning | Chess Middlegame |Advanced Level |GM Alex LendermanUnderstanding Pawn Levers - Strategic Planning | Chess Middlegame |Advanced Level |GM Alex LendermanChessfactoradvanced
"Mayhem in the Morra" by IM Marc Esserman"Mayhem in the Morra" by IM Marc EssermanChessexplainedadvanced
Middlegame Strategy #003 Petrosian vs Schweber Kings Indian Clamp StructureMiddlegame Strategy #003 Petrosian vs Schweber Kings Indian Clamp StructureChessexplainedadvanced
"How I Beat Fischer's Record" by GM Judit Polgár"How I Beat Fischer's Record" by GM Judit PolgárChessexplainedadvanced
Understanding Pawn Chains in the French Defense | Middlegame | Advanced Level | GM Alex LendermanUnderstanding Pawn Chains in the French Defense | Middlegame | Advanced Level | GM Alex LendermanChessfactoradvanced
"Modernized: The Open Sicilian" by IM Zhanibek Amanov & FM Kostya Kavutskiy"Modernized: The Open Sicilian" by IM Zhanibek Amanov & FM Kostya KavutskiyIM John Bartholomewadvanced