Uh... Lets see..
Harry Potter Series by J.K. Rowling (Joanne Kathleen).
Royal Diaries Series by different authors.
Dragon Keeper Trilogy by Carole Wilkinson
The Tail of Emily Windsnap Trilogy by I have no idea...
Warriors Series by Erin Hunter
Tales of Redwall by I forgot... T_T I barely look at the authors.
Dork Diaries Series by Rachel Renee Russel
Diary of a Wimpy Kid Series by Jeff Kinney
The Last Unicorn by no idea...
The Bronze Pen by Zilpha Keatley Snyder
Holes by Louis Sachar
39 Clues series by different authors
Candy Apple books by different authors
Poison Apple books by different authors
I have a whole bunch of others I cant think of from the top of my head. T_T