Ranting about grammar :P

Just because you have read many books does not mean you know or understand how to write correctly or use grammar correctly. It is the nature of those books you have read that counts. If those books are off-color or purposely have bad grammar, you will become accustomed to that form of writing and come to write the same way. Do not base your grammatical understanding on these works! I have spent many years studying grammar and finding books that accurately represent perfect writing. No, fictional works do not all have to have perfect grammar if it proves some point or gives aide to the story line.
To learn description, similes, metaphors, etc. poetry is your best offense. Reading Tolkein is also a good idea. When you read most books, choose an author's later works for better literature. Again, this does not hold true for all, but most.
Better yet, do not try to edit another's or your own writing if you do not understand grammar and you cannot write.
Thank you for reading my rant and hopefully those who need to read this will.