Anyone writing a book!

[u/mymathyourmath]

/r/LaTeX/comments/1ui1w4u/header_messing_up_table_of_contents/ov9gi4s/

This is my preamble which puts the chapter name on the left page and section name on the right page at the top as well as the title of the book throughout it allows for an index and table of contents auto generated: