user5745: Can you please recommend good books for- Grunfeld and Sicilian defense. Would prefer separate books for either. Specially one which contains deeper analysis and has recent games illustrated. 

user4543: Winning with the Sicilian by Mark Taimanov.

user-1: Sicilian is not in my repertory and I want to include it.
I haven't read it yet, but after reading other books by GM De la Villa and some feedback I have read, I would recommend blindly "Dismantling the Sicilian: A Complete Modern Repertoire for White".

user3357: There are many types of Sicilians so you should specify which one you intend to play,
But generally a good book is: Starting out: The Sicilian by John Emms 
Although there are a whole multitude of excellent books written about specific Sicilians so if you could specify more than I could recommend some excellent books on those specific Sicilians.
For Grunfeld it's a little simpler, an excellent book is Understanding the Grunfeld by Jonathan Rowson, which is a very well regarded book.
There are many more excellent Grunfeld books but far too many to mention in this post.

5745: <p>Can you please recommend good books for- Grunfeld and Sicilian defense. Would prefer separate books for either. Specially one which contains deeper analysis and has recent games illustrated. </p>
 4543: <p>Winning with the Sicilian by Mark Taimanov.</p>
 -1: <p>Sicilian is not in my repertory and I want to include it.</p>

<p>I haven't read it yet, but after reading other books by GM De la Villa and some feedback I have read, I would recommend blindly <strong><a href="https://www.amazon.es/Dismantling-Sicilian-Complete-Modern-Repertoire/dp/9056917528" rel="nofollow noreferrer">"Dismantling the Sicilian: A Complete Modern Repertoire for White"</a></strong>.</p>
 3357: <p>There are many types of Sicilians so you should specify which one you intend to play,</p>

<p>But generally a good book is: <a href="http://rads.stackoverflow.com/amzn/click/1857445880" rel="noreferrer">Starting out: The Sicilian</a> by John Emms </p>

<p>Although there are a whole multitude of excellent books written about specific Sicilians so if you could specify more than I could recommend some excellent books on those specific Sicilians.</p>

<p>For Grunfeld it's a little simpler, an excellent book is <a href="http://rads.stackoverflow.com/amzn/click/1901983099" rel="noreferrer">Understanding the Grunfeld</a> by Jonathan Rowson, which is a very well regarded book.</p>

<p>There are many more excellent Grunfeld books but far too many to mention in this post.</p>
