Hi , I have never uses google adword but now planning to start it.. But I want to read and learn about it... Please suggest where and how to start with it. Thanks
Check the support pages from google: http://adwords.google.com/support/aw/?hl=en There is a lot of info there
And bring your wallet. Adwords can be costly, especially for popular keyword terms/phrases. Use some of the Adwords tools that Google offers to see how competitive they kw's are. You may be better served by Bing/Yahoo as they're not as competitive (but then again have less traffic).
l lost money online with only Adwords. It was like a casino for me. Don't try it until you exactly know what you are doing.