On education of prisoners: It would work for some prisoner, and have no effects on others. Some people in prison made stupid mistakes, and would like to improve their life, and would probably be less likely to commit a crime if they are educated. But abusively there will be some people that would not be effected be education, because they are criminals on a deeper level, and might still do crimes if they were educated.
I think a prison system should be about separating people that just made mistakes and people who are just criminals by nature. I think people who just made mistakes should have some punishment, but they should get an opportunity to earn more privileges, like education and more recreational options. People who are violent by nature would need to be kept in prison longer and probably less effort would be need to put on reforming their lives.
I believe that length of less violent or major sentences need to be shortened, but prisoners should rarely get the option of getting left out early. I'm sure there have been people who pretend to be really good and then get let out to do more crimes.