What's the best chess positional book?

http://sagarteacheschess.blogspot.com/2015/09/python-strategy-book-review.html

http://www.qualitychess.co.uk/ebooks/PythonStrategy-excerpt.pdf

I agree that Soltis's book is excellent. It took my understanding of chess to a new level. As a follow up, I recommend Chess Structures: A Grandmaster Guide by Mauricio Flores Rios. It's better organized than Soltis and covers some additional structures. One of the best features in Flores's book is the attention paid to pawn structure transformations. 

https://chessbookreviews.wordpress.com/tag/dynamic-decision-making-in-chess/

http://www.qualitychess.co.uk/ebooks/DynamicDecisionMakinginChess-excerpt.pdf

http://dev.jeremysilman.com/shop/pc/Chess-Praxis-77p3819.htm

https://www.qualitychess.co.uk/ebooks/ChessPraxis-excerpt.pdf

I think that book is only available in descriptive notation (1 P-K4 P-K4). For a modern book with a little bit more of a focus on instruction, one might try Morphy: Move by Move by Zenón Franco.

https://www.newinchess.com/media/wysiwyg/product_pdf/7625.pdf

One of the best ways to learn about positional chess is to study the best games collections of 

Rubinstein, 

Capablanca, 

Botvinnik, 

Smyslov, 

Petrosian, 

Fischer, 

or 

Karpov.

https://www.newinchess.com/media/wysiwyg/product_pdf/7573.pdf

https://www.newinchess.com/media/wysiwyg/product_pdf/7128.pdf

https://www.newinchess.com/media/wysiwyg/product_pdf/7297.pdf

https://web.archive.org/web/20140708234322/http://www.chesscafe.com/text/review734.pdf

http://www.qualitychess.co.uk/ebooks/PythonStrategy-excerpt.pdf

https://www.newinchess.com/media/wysiwyg/product_pdf/7548.pdf

https://www.newinchess.com/media/wysiwyg/product_pdf/7529.pdf

I have my system mixed with chess praxis. It uses older types of English though

in the furure i would like to read these two books serie

It's good as they say.