When you are reading this for the first time as an adult, don't forget that it can be a book for a younger audience.
So, go there, link is found few lines below, download whatever ebooks you find useful, and start your Web marketing career. I know this is often a boring industry. http://wiki.orienteering.org.nz/doku.php?id=young_adult_books_need_atings_much_like_movies