This download is from the Kodansha TV Picture Book series – this book is volume 6 – Sailor Jupiter Toujou – Sailor Jupiter appears! There were over 50 books from this series. All were published in cardboard books meant for little kids. They are in Japanese language, but in hiragana and katakana, so a novice in studying Japanese could probably read these.
Once I have compiled a complete collection of these books, I will consider translating them. :)
Click on the gallery links below to view the images in low definition, or download the massive archive of the HQ files here:
download: gallery download