Complex sentence: Byron Preiss (1953--July 9,2005) was an American writer, editor and publisher, and founded and served as president of Byron Preiss Visual Publications which developed projects for various publishing houses, and was also the founder of ibooks.
Split into simpler sentences: Byron Preiss (1953--July 9,2005) was an American writer, editor and publisher. He founded and served as president of Byron Preiss Visual Publications, which developed projects for various publishing houses, and was later the founder of ibooks.