Seo type Please explain

White hats are those which obey the guidelines by major search engines to optimize their site. White hat SEO is not just about following guidelines, but also ensures that the content to be indexed by search engine and makes the site to get subsequent ranking. Usually, it ends up in the form of a lot of traffic and higher profits take anywhere from 3 months to a year. Eventhough it takes some time to accomplish, we can able to get the stable result through white hat techniques.

Gray hat SEO includes things like publishing duplicate content. Multiple, otherwise white hat, sites that have the same content. Gray hat SEO also includes mild artificial linking schemes. For instance, gray hat linking schemes may get your links devalued, whereas black hat linking schemes could get your site banned.

Black hat technique are illegal or improper things which has to be avoided. You will get punishment or ban by Google for doing this..
This includes.,
# Keyword stuffing
# Hidden link
# Over optimization
# Duplicate content (for this also you will get banned, if Google came to know this)

Great information m really wants to appreciate this post Thanks a lot for this .

First lesson
Learn to use google

The good way is White Hat
The rest mean tricking the SE and unethical methods