What is the difference between a public interest attorney, civil rights attorney, and human rights

What is the difference between a public interest attorney, civil rights attorney, and human rights attorney? How our the job outlooks and employment opportunities? Who would I work for?How would I go about pursuing a career in this field? And what is the potential salary?

Public interest is a broad category which would include working for the government or a non-profit. You could think of civil rights and human rights as a subset of public interest. It would be a bit indirect but if you read up on a top law schools Loan Repayment Program you would get a good feel for what is considered public interest. Most of the more highly ranked law schools have programs whereby your loans are forgiven over some period of time if you work in a public interest job below a certain salary level. NYU or Columbia both have good programs and the details would help you understand what is meant by public interest