OpenBook plugin for WordPress has been updated to version 3.5.1. It fixes the missing button issue that came up with the release of WordPress 3.9. It also improves the usability of the Visual Editor dialog — the Preview is in a separate window rather than down at the bottom of the dialog. WordPress will notify you of the plugin update, as usual. Thanks for Mark, Terry, Dan, and JB for testing before release. Keep thinking about the OpenBook Cloud idea!