2nd house ruler saturn and mercury significators of the book.
Mercury, natural significator of books, in 11th. So there is a possibility of connection with a friend. Saturn also rules 3rd house, relatives. It receives mercury. That caught my attention.
Moon conjunct 11th cusp and ruler of 11th venus aspects mercury, the book; so i think a female friend.
Asc lord Jupiter's last aspect is with mercury as far as i can see. Mercury again. It may be lost due to a friend or an acquaintance or a younger person.
Asc ruler Jupiter is going towards saturn, second house ruler (of possessions), saturn is also retrograde. I think you can get the book back or you can understand how it disappeared.