There are a number of different kinds of readable objects in Lusternia. Simply typing READ <object> will let you read whatever is contained in or on them. Some books or letters may be encipher by someone trained in Rituals. If you know the relevant cipher, you can READ <object> DECIPHER <cipher>. You can also read certain pages, using READ <object> PAGE <page>. If you want to decipher a certain page, use READ <object> PAGE <page> DECIPHER <cipher>.