What I expected to happen was...:
I would craft with a book.

What actually happened was...:
The book in my inventory disappeared.

Steps to Reproduce:
Log on to a Bukkit server, specifically server.potatomybiscuit.net:25564 (not tested in SSP)
Obtain Creative mode
Put a book in your inventory
Open a crafting table.

*OR*
Log on to Bukkit server
Obtain Creative mode
Throw down an ink sack
Place a book in the first available slot of hotbar and hold it
Pick up ink sack