The popular open-source e-book management tool, Calibre, has just released version 9.0, featuring a noticeable visual refresh.

The most visible change is the new Bookshelf view, which presents libraries as shelves lined with book spines instead of a traditional list or grid. The layout can be toggled using the Layout button in the bottom-right corner of the main window, making it easy to switch between views depending on library size or personal preference.

The e-book viewer also gains tighter integration with editing tools. A new Edit book button allows users to jump directly into editing the currently open book when it is in an editable format, such as EPUB, AZW3, or KEPUB. The editor opens at roughly the same location as the view, reducing friction between reading and editing. […]