Complex sentence: He has traveled continuously and extensively around the world on Islamic lecture-tours since graduating from the Aleemiyah Institute of Islamic Studies in 1971 at age 29, and he has also written more than a dozen books on Islam that have invariably been received with public respect.
Split into simpler sentences: He has traveled continuously and extensively around the world on Islamic lecture-tours since graduating from the Aleemiyah Institute of Islamic Studies in 1971 at age 29. And he has also written more than a dozen books on Islam that have invariably been received with public respect.