The London system

Hi guys, the London system has become more widespread recently. Do you have any creative idea against the London?

for black or white?

For white u can find many informations, especially here...

For black, i recommend the system advocated by Nitrlis in his excellent 1.d4 d5 repertoire :

https://www.qualitychess.co.uk/products/1/307/playing_1d4_d5_-_a_classical_repertoire_by_nikolaos_ntirlis/

He gives a simple way to treat it as black : the idea is to play a set up with d5-e6-Nf6 (like a QGD), trading DS bishops with Bd6, castle, and according white's development, trading LS bishops with b6-Ba6, or battling for control of e5 square with c5-Nc6-Qc7, or playing both...

Possibly helpful:
Grandmaster Repertoire 11: Beating 1 d4 Sidelines by Boris Avrukh (2012)
https://web.archive.org/web/20140627001415/http://www.chesscafe.com/text/hansen164.pdf
http://www.qualitychess.co.uk/ebooks/GM11-1d4Sidelines-excerpt.pdf
Dealing with d4 Deviations by John Cox (2005)
https://web.archive.org/web/20140627032909/http://www.chesscafe.com/text/hansen89.pdf
Fighting the London System
http://www.chess-stars.com/resources/London_Contents.pdf
Playing 1.d4 d5
https://www.chess.com/blog/pfren/playing-1-d5-d5-a-classical-repertoire
https://www.qualitychess.co.uk/ebooks/Playing1d4d5-excerpt.pdf
A Practical Black Repertoire With d5, c6
http://www.chess-stars.com/resources/contents_black_rep_d5c61.pdf