《觀景窗》內頁打開呈中空，邊框形如相機的觀景窗。讀者自由取景，把所見之物獵入書中，成為閱讀的內容——閱讀你眼之所見，書本內容由你決定。
 
如透過《觀景窗》拍照，框中之物顯得十分平面，效果殊異；或伸手穿過本書，即可取得書中之物。
 
此書內頁取自Son Ni《導覽器》一書印刷過程裡，刀模裁切對反之1904張邊框所製成，僅製作105本。
 
本書榮獲2024台北國際書展「金蝶獎」銀獎。
 
Viewfinder opens empty at the center, allows framing like the viewfinder of a camera. The reader finds the view -- read what you see, and decide your own content. If you take photo through the book frame, the image looks amazingly flat; or if you put your hand through the frame to grab something, now you get what you see!
 
This book is made from the 1904 paper frames, reciprocal of the die-cut of Son Ni's Navigator. Limited edition of 105 copies. 
 
Viewfinder is awarded the Silver Medal of the "Golden Butterfly Award", the book design prize of Taipei Internation Book Exhibition 2024.