Nimzo-Indian Defense (E20-E59) - Opening Theory

Nimzo-Indian Defense Resources

Wikipedia Page
 General opening theory, History and Variations

Bishops Bounty 4.e3 Nimzo-Indian Defense Page Link
(Page just for this Variation)

BOOKS (Free)

Free Nimzo-Indian Defense  Chessible Courses

Nimzo-Indian Defense- Tournament Edition -  37 Trainable Variations
Short & Sweet: Nimzo-Indian - 21 Trainable Variations  by IM Sieleki
Short & Sweet: Nimzo-Indian - 25 Trainable Variations by WFM Keetman
Short & Sweet: Nimzo-Indian Defense - 31 Trainable Variations GM Ganguly
Short & Sweet: La Nimzo Clásica - 30 Variations GM Fernandez (SPANISH)

Nimzo-Indian Chess Articles

The Nimzo-Indian: An Essential Guide to One of the Best Chess Openings - Huge Article with 6 Imbedded Videos done By several GM's   (Very Nice Place to Start)

How To Play The Nimzo Indian Defense Chess Opening - Hercules Chess
A Pawn Sacrifice Revisited - IM Andrew Martin
Nimzo-Indian Defence  - Simplify Chess Opening Guide 
Nimzo-Indian Defense  - Opening Guide by IM Alberto Chueca

Nimzo-Indian Defense: Play, Attack, and Counter as White & Black  - Chessable Blog Opening Guide ( very nice)

Nimzo-Indian LiChess Studies

Nimzo-Indian Defense  - 39 Chapter Guide  (500 hearts)
The Complete Guide to the Nimzo  - 6 Chapter Study  (56 hearts)
Nimzo Indian defense - 7 Chapter Study showing Main Lines
Playing against the NIMZO-INDIAN - 9 Chapter Study
QGD vs Nimzo Indian - 3 Chapter Study

Games Databases

365Chess.com

E20 - E59 Nimzo-Indian Defense - (Lists Broken Down by ECO Code)  

Chessgames.com

Nimzo-Indian (E20-E59)  - 74 Annotated Games

Annotated Nimzo-Indian Games

Bacrot, E. vs Anand, V. (E20) - Boris Schipkov
Lautier, J. vs Korchnoi V. (E20) - Boris Schipkov
Timman vs Karpov (E21) - Inside Chess GM Yasser Seirawan
Volkov, S. vs Sakaev, K (E25) - Boris Schipkov
Khalifman, A vs Anand, V. (E42) -Boris Schipkov
Malakhov, Vladimir - Nielsen, Peter Heine [E46] - Boris Schipkov
Aleksandrov, Aleksej (2630) - Lugovoi, Alexei (2540) [E48]
Van Wely, Loek (2681) - Acs, Peter (2591) [E48]
Lugovoi, Aleksei - Balashov, Yuri [E52]
Aleksandrov, A. (2620) - Adams, M. (2745) [E55]
Khalifman A vs Anand V [E55]
Goldin, Alexander (2618) - Ye Jiangchuan (2676) [E61]

Nimzo Indian Chess Video Lessons

The Nimzo - indian defense explained - 36 Part Playlist - Jozarov's Chess Channel
Nimzo-Indian Defense  - 13 Video playlist  - Chess Geek

WIN GAMES with the Nimzo-Indian Defense! - 37 Min IM Rozman 

Use This Repertoire for White And CRUSH The Nimzo-Indian! - GM Jan Gustafson- 20 Min

Chess Openings: Learn to Play the Nimzo-Indian Defense! - 20 Min

Chess Openings Uncovered Ep 4 - The Nimzo Indian - 53 Min - ChessExplained - IM Christof Sielecki

Chess Coach  IM Andreas Toth

Intro into the Nimzo-Indian - Understanding Your Openings #5 - 28 Min
Tricky sidelines in the Nimzo-Indian - Understanding Your Openings #5 - 15 Min
Nimzo-Indian Mainline with 4.e3 | Understanding Your Openings #6 - 27 Min
Nimzo Indian Defence | Lines Against Qc2 | Understanding Your Openings #9 - 17 Min
The Anti Nimzo Indians | Understanding Your Openings - 13 Min
The Amateur's Mind, Classical OTB analysis - NImzo Indian Defence - 8 Min

 St Louis Chess Club

The Nimzo-Indian Defence, Classical Variation - Chess Openings Explained - 44 Min 
Play the Nimzo-Indian Defence - GM Varuzhan Akobian - 24 Min GM Akobian
Weaken White with the Nimzo-Indian | Grandmaster's Choice - IM Dorsa Derakhshani - 2 HR
Entertaining Nimzo-Indian & King's Indian - Beginner Breakdown - 52 min

(f3 Nimzo Series)

Fight with the f3 Nimzo-Indian: Part 1 | Chess Openings Explained - NM Caleb Denby - 64 Min
Fight with the f3 Nimzo-Indian: Part 2 | Chess Openings Explained - NM Caleb Denby - 57 Min
The f3 Nimzo-Indian: Part 4 | Chess Openings Explained - NM Caleb Denby - 58 Min
The f3 Nimzo-Indian: Surprising Ne8! | Chess Openings Explained - NM Caleb Denby - 65 Min
The f3 Nimzo-Indian: Perplexing Bishop Retreat | Chess Openings Explained - NM Caleb Denby - 66 min
The 4.f3 Nimzo-Indian Defence | Road to 2000 - NM Caleb Denby - 57 Min
The f3 Nimzo-Indian: ...c5 (Dark Sq. Plan) | Chess Openings Explained - NM Caleb Denby - 68 Min
The f3 Nimzo-Indian: More 4...c5 | Chess Openings Explained - NM Caleb Denby - 57 Min
The f3 Nimzo-Indian: Odds & Ends | Chess Openings Explained - NM Caleb Denby - 59 Min

Chess Lesson - Nimzo Indian Defence Part 1 - 10 min Video
Chess Lesson - Nimzo Indian Defense Part 2 - 10 Min Video

Annotated Nimzo-Indian Game Videos

Nimzo-Indian  - 160 Video Playlist  - Kingscrusher    (Famous Games)
Nimzo-Indian Defense  -  83 Video Playlist  - agadmantor  (Famous games)
Nimzo-Indian Defense  - 91 Video Playlist  - Chess School
Nimzo Indian  - 52 Video Playlist  - Chessbase India  (Lessons and Games)

GM Akobian vs Nimzo Indian - 6 Video playlist - ( All are 30-40 Min Lectures at St. louis CC)

Master Class | Nimzo-Indian Defence | Chess Speedrun | Grandmaster Naroditsky - 47 Min
Nimzo-Indian Positional Break Down | Queen's Indian | The Sensei Speedrun | GM Naroditsky - 18 Min

Ivanchuk vs Karpov - 11 Min Video
Anand vs Kramnik - 11 Min Video
Kasparov vs Chuchelov - 8 Min Video
Portisch vs Fischer - 8 min Video
Topalov vs Aronian - 11 Min Video
Reshevsky vs Donner - 9 Min Video
Morozevich vs Carlsen - 10 Min Video
Murshed vs Bradbury - 9 Min Video