<page_title> List of best-selling books </page_title> <section_title> More than 100 million copies </section_title> <table> <cell> Perry Mason <col_header> Book series </col_header> </cell> <cell> 300 million <col_header> Approximate sales </col_header> </cell> </table>
The Perry Mason series is the third best selling book, with sales of 300 million.