14 books
Diary of Princess Peach - Book 2
Diary of Yoshi - Book 4
Diary of Yoshi - Book 2
Diary of Yoshi - Book 3
Diary of Princess Peach Book 1
Diary of Super Mario Book 1
Diary of Super Mario Book 2
Diary of Super Mario Book 3
Diary of Super Mario Book 4
Diary of Yoshi - Book 1
Diary of Pikachu Book 4
Diary of Pikachu Book 3
Diary of Pikachu Book 2
Diary of Pikachu - Book 1