Which source is usually found in the back of a non-fiction book?

This is a short introduction to a book, usually written by someone other than the author. This is a short, separated introduction to a book, usually written by the author. This is a list found in the back of a book that gives definitions of unusual or hard words found in the text.

Explanation:

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.

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