I am a learner of SEO. I want to be an expert in seo. Would anyone can tell me
I am looking forward to hearing from you with example.
Thanks everyone.
Here’s an introduction to the topic: http://en.wikipedia.org/wiki/Search_engine_optimization#White_hat_versus_black_hat_techniques
If you have additional specific questions, feel free to ask 
White hat is good google approved seo tactics. Black hat is bad not google approved tactics. White hat is google suggested tactics. Black hat is stuff that will eventually get you de-indexed if caught.
The difference between white hat and black hat seo is the manner or the way the seo is performed or delivered as well as the quality.
White hat seo follows the rules and search engine designs with no deception, while black hat seo uses techniques that are unethical and disapproved by search engines. The most important thing is the content.
The difference between White and Black Hat SEOs depend on how it affects the rules and regulations of a search engine. White Hat adheres to the law. Black Hat is seen as a cheater on the system. It manipulates link building techniques which the search engine considers unethical.