Sometimes I find this very depressing. Nietzsche's the rare philosopher who wrote very clearly. He spent his life struggling to be absolutely clear and make himself understood. But the vast majority of secondary literature is just completely wrong, sometimes to the point of almost being libelous - I have Bertrand Russel's section on him in a History of Western Philosophy in mind as an example.

The end result is that most people have no idea what Nietzsche thought and believed, but he gets held up as an example of something he spent his life fighting.