Lectern

Lecterns are Blocks added in Update 1.10.

Obtaining
Lecterns can be obtained by crafting them or from finding them in libraries in villages.

Crafting
4 Wooden Slabs + 1 Bookshelf => 1 lectern

Usage
Lecterns are used for holding book and quills, which can allow multiple players to read the book at the same time.

Redstone signal
Lecterns holding a book can emit a redstone pulse when a page is turned.