I'm not sure what you mean by "booklink". Could you please provide more context or clarify your question? Are you asking about:

1. A specific website or service that provides links to books?

2. A feature in a book-related app or program?

3. A type of hyperlink used in electronic books?

4. Something else entirely?

If you can give me more information about what you're looking for, I'll be happy to help you with more accurate and detailed information.