Hi Sameer
Welcome to Javaranch. We follow some rules pertaining to User names. The rules are specified at
here Your User name does not follow these conventions.
It is recommended that you immediately register under a name conforming to the conventions. Regarding Books on Threads. To start out with i followed the Core Java II section on threads which is good for an introduction to threads.
If you want additional reviews check out
here Hope to see you around with a changed User Name.
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Regds.
Mahindrakar