The writings of Ayuba Suleiman Diallo are an important source of information on the slave trade because:

Ayuba Suleiman Diallo was a famous anti-slavery advocate wherein he was a Muslim in the African continent and was a victim of the rampant slave trade pioneered by European colonisers. In addition, his writings have been proven to much a much useful source of information because these were his first-hand accounts about his experiences.