After completing your bachelor’s and master’s degree you can develop your knowledge in a particular area which generally known as specialist degree. Those who don’t want to do a PHD after master’s degree he can do a specialization in a particular area to advanced his knowledge. The educational Specialist degree advances and enhances the teaching and leadership ability of a person which beyond the capability of a masters level.
You can complete your specialization in a subject in various universities, colleges and online schools. Also one can complete his/her specialization while working. There are many part time and full time courses are available in many shifts. And moreover the online education centers are available for 24 hours, so it will be possible to choose a best time whenever you want.
Basically a person who wants to enhance their future in the field of teaching goes for a specialization. But there are various fields, in which you can specialize yourself, like in a technological field, in various scientific fields, education and arts field etc.