Best Pawn Play book?

I am currently trying to find out which book I want to study to progress further.
My ELO is about 1700-1750.

I consider improving my understanding for the different pawn structures appearing in different openings.

The books that I consider are:
Pawn Structure Chess by Soltis
Understanding Pawn Play in Chess by Marovic (maybe followed by Dynamic Pawn Play in Chess)

My first impression is that Pawn Structure Chess is a bit more advanced compared to the other one.

Does anyone know these books? And what do you recommend?

http://www.amazon.com/Pawn-Structure-Chess-Andrew-Soltis/dp/0812925297

This is a great book, and not that difficult to follow. Marovic' book is not bad either, but certainly less good than the Soltis classic.

They deal with different levels of granularity.

Kmoch's Pawn Power in Chess is the finest level of granularity. Unfortunately, there's no other book like it. I say unfortunately because Kmoch is not easy to decipher at times. 

It's also possible, Kmoch gets carried away with the importance of pawn structure over piece activity. An example is his discussion of the Ruy Lopez Exchange Variation. 

My opinion is based on pretty limited experience. However, I'm facinated by the topic 'cause if chess is consistent with the rest of the world, everything is ass-backwards and pawns are actually the most important element in chess.

I think it was Aretha Franklin that said, "Pawns are the soul of chess."

Thanks :)

OK, I think you can't go wrong by picking this one.

I could also recommend the original, 3-volume work of Ludek Pachman "Modern Chess Strategy" which is still hard to beat (and it's not not just pawn structures, but virtually every element of positional play). There's also a single volume edition of this classic, but IMHO you should try picking the real thing.

I liked the single volume of the book and also considered parts of the 3 volumen.

I also considered Judgement and Planning by Euwe.

Must admit that I spend to much time choosing a book.

In my opinion it does not depend on which book I choose, but how to study chess correctly and in the right pace. Many players at my level just reads the authors comments and moves and forget to think for himself. So when we play otb we forget how to use the theory we studied!

Both Soltis and Pachmann helped my game immensely. Kmoch is as was said, a bit hard to follow but is probably one of the best books on pawn play. As you said, many OTB players, especially blitz players like myself, read little and understand less these days. Probably because anyone who has an I or G in front of their master norm has a book it seems these days so finding the "right" book is a matter of both discernment and personal taste. Euwe is also a good choice. If unsure which to buy, heck buy them all. 

Good Luck

Haha, already did! Bought them some years ago, but I was not good enough at that point. Hopefully I am now.

Well I had a good experience. I read about queen side attack in Euwes book and saw that some of the games was with the Panov pawn structure.

So afterwards I studied the chapter in Pawn Structure Chess (both books actually uses same game played by Botvinnik).

By combining two good books I felt I got an ok basic idea of how to play the structure and create a plan! I will continue to follow this approach in my future chess study and hopefully help me to understand and learn openings better.

I think it's Philidor who said "Pawns are the soul of chess."

Not quite. One night at the Cafe de la Regence, Aretha said, "Pawns... They are the very life of chess." It is her only known comment on the game.

Philidor agreed with her.

A must reading book by IM Jeremy Silman that teaches you how to come with the best plan in a chess position based on 'imbalances': http://jafiles.net/file/0T5ey

looks like 7 years late and these books were of no help to the OP as he has not improved  ;-)