Sankaku no Glass

Sankaku no Glass (三角の硝子; Triangular Glass) is the first visual photobook by Sato Masaki. It was released on October 6, 2018 by Odyssey Books and marketed by Wani Books. It includes a 30-minute making-of DVD."佐藤優樹(モーニング娘。'18)ファーストビジュアルフォトブック「三角の硝子」発売決定！！" (in Japanese). Hello! Project. 2018-08-27.
==Bonus Photos==
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SatoMasaki-SankakunoGlass-PBbonus03.jpg
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SatoMasaki-SankakunoGlass-PBbonus05.jpg
SatoMasaki-SankakunoGlass-PBbonus06.jpg
SatoMasaki-SankakunoGlass-PBbonus07.jpg
SatoMasaki-SankakunoGlass-PBbonus08.jpg
SatoMasaki-SankakunoGlass-PBbonus09.jpg
SatoMasaki-SankakunoGlass-PBbonus10.jpg
SatoMasaki-SankakunoGlass-PBbonus11.jpg
==Chart Positions==
===Oricon Chart Positions===
;Weekly Photobook Ranking
!Ref
|https://www.oricon.co.jp/rank/obp/w/2018-10-15/
Total Reported Sales: 902
===Other Chart Rankings===
!Ref
|-
| rowspan="1" |
|October 2018 Shosen Female Talent Photobook Sales Ranking
|1
|"2018年10月「書泉・女性タレント写真集売上ランキング」発表！" (in Japanese). Shosen. 2018-11-09.
|}
==Trivia==
*A release event was held on October 5, 2018 at Shosen Book Tower in Tokyo."佐藤優樹(モーニング娘。’18)ファーストビジュアルフォトブック「三角の硝子」発売記念握手会開催決定！！" (in Japanese). Hello! Project. 2018-09-10.
*The photobook is in B5 size, and it was shot in Hakodate and Sapporo. 
*The photobook features Sato Masaki in a café, Japanese garden, ranch and park wearing one-piece dresses, room wear, and yukata.
*Depending on which store the photobook is purchased from, it will come with a different L-sized photo.
*On Hello! Project Station's Memory Dictionary Relay corner, Sato Masaki talked about prisms, which is defined as a triangular glass that refracts light, and compares Morning Musume to a prism and Tsunku to the light that shines through a prism. 
==Videos==
==References==
==External Links==
*Listings: Hello! Project, Odyssey Books
*Store Listings: Amazon.co.jp, Amazon.co.jp (Limited Cover), e-LineUP!, Rakuten Books, 7net, Tower Online, HMV&BOOKS online,
Category:2018 Photobooks
Category:Solo Photobooks
Category:Sato Masaki Photobooks
Category:Odyssey Books
Category:Visual Photobooks