How do I compile a opening book and other book learning related matters?
The best way to learn is to read the Readme and FAQ . A common misconception is that book learning occurs in the book.lrn file. In fact, any changes due to the book learning are written into the Book.bin files as well, but the book.lrn files serves as a record of the changes done. This allows Crafty users to swap book.lrn files to be imported.