端の本を傾けて崩れを防ぐストッパー

ブックエンドの存在感を無くしました。端の本の下に適度な斜面をつけ、本を内側に倒すことで本の崩れを防ぎます。

A book stopper that keeps books in place by tilting the book at the end
This stopper keeps books in place with less presence than a bookend. It tilts the base of the book at the end at a nice angle and keeps the book in an inner-leaning position, thereby keeping all the books in place.