You can use any wooden slabs in the game for this recipe ... the lectern will give a Redstone pulse depending on the progress of the player into that book. To use a lectern in Minecraft, put ...

Lecterns are a job site block for librarians. Such blocks can be used to turn unemployed villagers (except nitwits) into librarian villagers. Librarians are among the best traders in Minecraft ...

In Java Edition, they will contain 100 pages ... Redstone signal is emitted by the lectern (Image via Minecraft 1.19) These are special books that can be placed on a lectern.