Well don't have book recommendations, but Simon Williams has a really nice free London video course on Youtube.
Books on the regular London System

black wins more than white in the London system. Also, it is VERY boring. The probably only fun thing is the possibility to greek gift.

black wins more than white in the London system. Also, it is VERY boring. The probably only fun thing is the possibility to greek gift.
Well, I don't doubt that black wins more than white, but from my experience it isn't too boring. Although I haven't played the london very much so I could be wrong.

The London System consists of active pieces and solid pawns. Hard to believe the opening would be terrible.

How is it garbage
it doesnt contest for an advantage
Familiarity is more important than an objective advantage

the London as a whole is trash
sorry Ry, it had to be said
smh London players
The jobava London is not really the London, just ask @ThrillerFan

I don't know some books, but I can recommend a very useful course https://chessmood.com/course/crushing-d4-sidelines

some books Romero Holmes, Alfonso, and Oscar de Prado - The Agile London System: A Solid but Dynamic Opening Choice for White Sedlak, Nikola - Winning with the Modern London System: A Complete Opening Repertoire for White after 1.d4 d5. an older book Johnson and Kovačević - Winning with the London System also you have Cyrus Lakdawala - Play the London System
are there any books about the London System that are good?