|Released||April 2, 2018|
|Previous||HELLO! PROJECT COMPLETE ALBUM BOOK (2015)|
It is a revised and updated edition of the HELLO! PROJECT COMPLETE SINGLE BOOK, which was first published in November 2013. However, the previous arranger interviews, roundtable discussions, and questionnaires will not be included again.
- A complete Hello! Project single catalog with all types of jacket photos, lyrics/composition/arrangement credits, and detailed disc reviews
- Tsunku interview + latest 2018 questionnaire
- Director questionnaires, including inside stories of recordings
- Songwriter interviews with Hoshibe Sho, Kodama Ameko, Hyadain, Tsuno Maisa, KOUGA, Iijima Ken & Sumikama Tomohiro, Izutsu Himi
- Interviews discussing the 20th anniversary of Hello! Project:
- Yajima Maimi (former ℃-ute) × Wada Ayaka (ANGERME), the former and current leaders of Hello! Project
- Legendary leader Takahashi Ai (former Morning Musume) × Paipai Dekami (tarento and Hello Pro fan)
- Fukumura Mizuki (Morning Musume '18) × Yamaki Risa (Country Girls), two members who love Hello! Project more than anything
- An arranger index
- Illustrations by manga artists Naka G, Mizushina Takayuki, Kindaichi Renjuurou
- Other informative articles
- ↑ "HELLO! PROJECT COMPLETE SINGLE BOOK 20th Anniversary Edition" (in Japanese). CDJournal. 2018-03-18.
- ↑ "「HELLO! PROJECT COMPLETE SINGLE BOOK 20th Anniversary Edition」発売決定！" (in Japanese). Hello! Project. 2018-03-20.
- ↑ https://twitter.com/CDJournal_staff/status/976091805421789184
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