TSL is a work in progress; the database will continue to grow over the years. Many graphemes, Classes, Functions and Sources are already in TSL but not visible online (for lack of validation), but we already encourage Egyptologists to send us:

• emendations concerning available data; authors of such emendations will be credited as ‘editor’ of the material
• new graphemes, classes, or functions that are not available in TSL; authors of such additions will be credited as ‘creator’ of the material

We stress the fact that additions will only be taken into account if an ancient Source is provided with the new material: Graphemes, Classes or Functions that are based on existing sign lists without ancient Sources will not be processed.