Hi Venagga,
 
Do you mean "private independent study programs" or "homeschooling"?
http://www.education.com/reference/article/Ref_Private_Independent/
http://www.education.com/topic/homeschool-programs/
 
Or perhaps you mean "private school"?
http://www.education.com/topic/private-school-options/
 
Or perhaps you mean "a nice private and quiet place to study"?
http://www.education.com/reference/article/Ref_Strengthening_Your/
 
I see you tagged your question with the "tests" category, so this last article may indeed provide the answer you seek (also including a link below to Test prep info ctr).
 
If these resources aren't helpful to you, please provide more information about your need. Thanks!