Apple has released an update for iTunes, version 11.1.5. The update fixes a crashing bug, and also improves support for iBooks for Mac in Mavericks.
Apple patch notes:
This update fixes a problem that may cause iTunes to quit unexpectedly when a device is connected and improves compatibility with iBooks for Mac on OS X Mavericks.
The update is available from the Mac App Store, or you can download the standalone installer (232.7MB) via Apple’s iTunes site.