This is sent by the server to open a book, and by the client to change the title or author.

Offset Type     Name             Description
------ -------- ---------------- ------------------------------
 0000  BYTE     cmd
 0001  UINT     bookID
 0005  BOOL     iseditable
 0006  BOOL     isnew
 0007  USHORT   pages
 0009  CHAR[60] title
 0069  CHAR[30] author

In modern clients, this packet has been replaced with the Book Info (0xD4) packet.