書斎

1. Origins, structure, and basic meaning

• Structure: 書斎 is read as しょさい and is a noun for a private room used for reading, writing, or study.
• Basic usage: Reading in a study appears in 書斎で本を読む, while turning a room into a study appears in 部屋を書斎にする.

2. Common pitfalls and similar expressions

• Place and function
  • Use で for the activity location and にする for assigning the room a function.
• Difference from 図書室
  • 書斎 focuses on a personal work room rather than a potentially shared library room.