Here’s the correction that I made.
I don't like most bestsellers. First, the reason for this is that bestsellers tend to cater to the masses. Second, they are often written in simple language and concepts. Additionally, bestsellers are usually designed to provoke, and sometimes even to be radical. Not to mention, there are thousands of classic works that I can hardly get through in a lifetime.
I added a few punctuation marks, and paraphrased some sentences.