thank you for your advices. i just wanted know more the isolated pawn. just for curiosity than improvement of rating. your advices and book recommendation is very helpful. thank you.
please recommend me the book, web site about the isolated pawn

Hi,
I own "The Isolated Queen's Pawn", by Reinhold Ripperger. Not bad, but I personally believe it's a very narrow topic (it's like studying a CD on "the g-pawn", for example IMHO), and I'd rather study some middle game tactics and strategy instead. Anyway since you were asking that's my two cents.
Regards.
"... There is also are more rough and ready book by Beliavsky though right now I cannot see an English translation for sale online. If you can get one it is worth it. ..." - PaulB234
https://www.newinchess.com/media/wysiwyg/product_pdf/7050.pdf
Baburin's is excellent, I agree. There is also are more rough and ready book by Beliavsky though right now I cannot see an English translation for sale online. If you can get one it is worth it. Other books on the subject I do not know about.