by the book

:  a set of written sheets of skin or paper or tablets of wood or ivory

:  a set of written, printed, or blank sheets bound together between a front and back cover

:  a long written or printed literary composition

:  derived from books (see ¹book 1) and not from practical experience

:  shown by ledgers

:  to register (something, such as a name) for some future activity or condition (as to engage transportation or reserve lodgings)

:  to schedule engagements for

:  to set aside time for