What is not "free" about MySQL (the application) is its server's commercial use; all clients and noncommercial server use are free. It is peppered with references to an online HTML documentation that comes with the source and binary distributions (which are available and easy to install in stable rpm and tar releases.) That the first third of MySQL is an excellent instruction tool for database newbies; the second third is a detailed reference for MySQL developers, and the last third consists of clearly annotated attachments, including C, Perl (but not Python), and PHP interfaces. Perhaps as an indication of the collective will of the developers of MySQL, DuBois does not separate Windows 95/98/NT design or specifically the development of major discussion. This is a valuable pr s than the MySQL database,? And the easy-skimmed see and feel will make it a very good track database experts who want to know what is and is not possible within MySQL, the application.