RHCSA with virtual machines-michael jang.....new book...any suggestions
 

hi all,
i'm preparing and trying to take exam this december...
i went thru' 6th edition book from michael jang.
but saw there was new one ...

is it worth it...

i couldn't see much difference...

wondering if that will help to practice more than what i've done with 6th edition...i'll definitely like to buy if so.

anyone has review for it would be great to hear.

thanks

6th edition is the current one.