Disclaimer: I have no experience with these books, whatsoever. But they have great reviews and free is my favorite price.
Do you know the Nerd King? Get to know him with these free Kindle downloads:
Diary of a Nerd King
Diary of a Nerd King #2: Episode 1 – Karate, Bears, and Looking Like a Girl
Diary of a Nerd King # 2 1/2: The GREATEST March Break EVER!
Diary of a Nerd King #3: Episode 1 – Smurfs, Poo Monsters,and REVENGE!
I think my own nerdling is going to love these.