What is the difference between Packages of Hours, Lessons or Monthly and Booklets of Lessons?

The difference lies in the fact that the Packages are not saleable in their own right but are necessarily linked to a Course. The package allows you to purchase only a portion of a Course allowing for possible renewals later.

The Carnet of hours can be sold separately from a Course and cannot be renewed but only purchased again.

A further difference is that the Carnet of hours can be purchased independently. A Package Course of Hours, Lessons or Monthly cannot be purchased independently.