The utility of GAP for character theoretical tasks depends on the availability of many known character tables, so there is a lot of tables in the GAP group collection.
There are three different libraries of character tables, namely ordinary character tables, Brauer tables and generic character tables.
Of course, these libraries are ``open'' in the sense that they shall be extended. So we would be grateful for any further tables of interest sent to us for inclusion into our libraries.
This chapter mainly explains properties not of single tables but of the libraries and their structure; for the format of character tables, see Generic Character Tables.
The chapter informs about Contents of the Table Libraries), item the sublibraries of ATLAS tables (see ATLAS Tables) and CAS tables (see CAS Tables), Organization of the Table Libraries), item and how to extend a library (see How to Extend a Table Library).