Looking up...
Refers to a specific book being discussed or pointed to in conversation.
你能借我这部书吗？
Can you lend me this book?
这部书是我最喜欢的。
This book is my favorite.
Used to specify a particular book in a conversation, often the one being held or recently mentioned.
'这部书' is slightly more formal than '这本书', but both are commonly used in everyday conversation.
Combination of 这 (zhè, this) and 部书 (bù shū, book).
Both '这部书' and '这本书' are commonly used interchangeably to refer to a specific book. '这部书' is slightly more formal.