As you'll see from the logs, I just opened a book from the library, and it crashed. My internet went down shortly before the crash, I don't know if that was the trigger.
2133.LogosCrash.txt
8883.Logos.zip
Similar to my crash at http://community.logos.com/forums/t/56615.aspx
It appears to be the same crash. It will be fixed in the next beta.