Hi santigregori,
As a short term solution, if you are comfortable with PHP you can use MyBookTable’s template system to modify or remove the overview title: https://github.com/authormedia/mybooktable/wiki/Template-System-Overview
To summarize the solution you need in this case, you will want to go into your theme folder in wp-content\themes\THEME_NAME and create a new mybooktable folder there. In that folder you can copy over the overview.php file from the MyBookTable templates folder at wp-content\plugins\mybooktable\templates\single-book\overview.php. You can then edit this file in your theme folder to make the title show up any way you like. Note that this change will persist through any future updates to MyBookTable instead of being overwitten, so we encourage you to continue updating your MyBookTable plugin regularly!
As a longer term solution, we are working on getting translations built into our plugin itself, and if you’re willing we would really appreciate your help with translation! We’re currently using https://www.transifex.com/ to organize our translation efforts, so if you sign up there and let me know what language you’re translating to, I can add you to the translation project and get your translations added into the plugin itself right away!
~Tim
