There are some books that you maybe interested in.
这里缺少谓语动词；改成：
There are some books that you maybe interested in.
把maybe 改成;may be
希望我的回答对您有帮助,祝好!
及时采纳,谢谢.So much people try to improve their English in different waysSo much people try to improve their English in different ways much 改成many