|Native Title||ハロプロまるわかりBOOK 2015 SUMMER|
|Released||July 11, 2015|
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Hello Pro Maruwakari BOOK 2015 SUMMER (ハロプロまるわかりBOOK 2015 SUMMER) is the twelfth installment of the Maruwakari BOOK series. It was released on July 11, 2015.
Individuals who bought the book at the Hello! Project 2015 SUMMER tour received a random card featuring a Hello! Project unit (7 in total). Individuals who pre-ordered the book at the Hello! Project Official Shop received a random photo of a Hello! Project member (51 in total).
- Morning Musume '15
- Country Girls
- Kobushi Factory
- Tsubaki Factory
- The front and back covers feature Kobushi Factory and Tsubaki Factory, the newest official members of Hello! Project at the time. This trend was continued with the next book in the Maruwakari series.