How To Pass Taxonomy Term (Name) to Filtered View (ID) - Drupal 7
I don't think it is possible to pass term name,instead of term id, as value for exposed filter. But if you are fine with passing term id in your second view then while rewriting the output check the replacement patterns available there you will see the term id.

Like if your field name is field_book_taxonomy then in your replacement patterns you will see two patterns like [field_book_taxonomy] and [field_book_taxonomy-tid], choose the later one.