Looking up...
この本は面白いです
This book is interesting
A book that is being referred to or pointed out in the current context
この本を読みましたか?
Have you read this book?
Used to specify a particular book in conversation or writing, often when pointing to it or referring to it in context.
この本 is used to refer to a book that is physically present or recently mentioned in the conversation.
Always refers to a specific book in the current context, not a general or hypothetical one.
Combination of この (this) and 本 (book)
Commonly used in everyday conversation to refer to a specific book in the immediate context.