I deleted a book from the library after peforming a sync.

How can the two copies turn out to be different?

I've downloaded the same book from Calibre to two devices.

I've followed the instruction to sync, but it does not work.

How to sync the reading position, notes, vocab and bookmarks of a book across devices?.

Does MapleRead allow duplicated books in its library?.

How to view my notes and vocab of each book on a PC or Mac?.

For a book we both read, is there a way to take notes without intermingling?

How to review in one place all my notes of a book?.

How to set up text-to-speech synthesis to speak any highlighted text?.

Can I specify a web browser app for My Dictionary or My Command? If yes, how?.

How to set up my own custom command as part of the context menu?.How to find out my current EPUB reading font size?.How should I make use of book sets and tags to organize my library?.Are the tags of imported books dependent on how I import?.How to assign (unassign) the same tags to (from) multiple books of a set?.

How to sort books by custom order in Library?.

How to delete multiple books at a time from a book set?.

How to move (copy) multiple books at a time from one book set to another?.

How to edit a book's metadata and cover image?.

How to find all my unread classic/romance/science fiction books?.

How to find the book I most recently read?.

Which font styles should I install for each user font?.

Can I add a font file of the same font family to an installed font?.

Can I rename a user font after installation?.

How to install user fonts via PC Upload?.

How to share books in MapleRead SE's library via its built-in OPDS/HTML server?.

How to export a user-defined (library) scene?.

How to export a user-defined (reading) theme?.

How to read books in formats other than EPUB and PDF?.

What is the best way to import books from Dropbox and other cloud drives?.

When and how to use Smart Batch Download for OPDS catalogs?.

How to import all books from Calibre in one shot?.

How to import books from Calibre via its Content Server?.

How to import books via PC Upload (Wi-Fi)?.

Calibre app for pc