P.S., can book bindings be made from materials other than stone and wood?
According to the Embark screen Book Bindings, Scroll Rollers, and Bookcases can be made from Metal, Wood, and Stone (or at least, you can embark with them). They are tools, so I'd guess you'd make the Stone/Wood ones in the Craftdwarf's Workshop, and the Metal ones in the Metalsmith's Forge (I've not embarked as of yet).
Edit: I embarked and it looks like (at least on my current save) that they can be made at the following workshops:
Instrument Piece: (Magma) Glass Furnace, (Magma) Kiln, (Magma) Forge, Craftdwarf's Workshop, Mason's Workshop, Leather Works.
Instrument: (Magma) Glass Furnace, (Magma) Kiln, and Craftdwarf's Workshop.
So I'm guessing that the pieces could be made from Glass (Glass Furnace), Ceramic (Kiln), Metal (Forge), Stone (Mason's/Craftdwarf's?), Leather (Leatherworks) and Wood (Craftdwarf's?). Edit: Bone (Craftdwarf's workshop?)
Also, might as well note:
Bookcase: (Magma) Forge {Other Items}, (Magma) Glass Furnace, Craftdwarf's Workshop {Stone}, Carpenter's Workshop
Book Bindings: (Magma) Forge {Other Items}, (Magma) Glass Furnace, Craftdwarf's Workshop {Wood/Stone}
Scroll Rollers: (Magma) Forge {Other Items}, (Magma) Glass Furnace, Craftdwarf's Workshop {Wood/Stone}
Quire: Craftdwarf's Workshop
Scroll: Craftdwarf's Workshop
Bind Book: Craftdwarf's Workshop
Quicklime: (Magma) Kiln
Sheet: Farmer's Workshop
Parchment: Tanner's Shop
Leather Works: Instrument Piece
Carpenter's Workshop: Bookcase
Craftdwarf's Workshop:Instrument, Instrument Piece, Bookcase (Stone), Book Bindings (Stone/Wood), Scroll Rollers (Stone/Wood), Quire, Scroll, and Bind Book.
Mason's Workshop: Instrument Piece
Magma Kiln: Instrument, Instrument Piece, and Quicklime.
Magma Forge: Instrument Piece, Bookcase (Other Items), Book Bindings (Other Items), and Scroll Rollers (Other Items).
Magma Glass Furnace: Instrument, Instrument Piece, Bookcase, Book Bindings, and Scroll Roller.
Farmer's Workshop: Sheet
Tanner's Shop: Parchment
Also tested, no apparent change in menus:
Mechanic's Workshop: N/A
Siege Workshop: N/A
Soap Maker's Workshop: N/A
Fishery: N/A
Clothier's Shop: N/A
Loom: N/A
Magma Smelter: N/A
Butcher's Shop: N/A
Jeweler's Workshop: N/A
Still: N/A
Edit #2: I glanced at the example raws, also looks like there is Bone instrument pieces as well (Craftdwarf's Workshop?)
Edit #3: I looked at the item_tool raws, and in regards to the quote: Book Bindings have the tag [HARD_MAT], wiki says "Presumably prevents the item from being made from cloth, silk, or leather". [HARD_MAT] is also found on the Hive, Nest Box, Pot, and Jug so I assume anything that they can be made from can also be used to make the Book Bindings (and scroll roller).