Two books you should read:
The 4 Voyages of Colombus.
Admiral of the Ocean Sea
The Seond book is out of print but available on audible. It is the capstone of all Colombus research.
Hiward Zinn largely ignored this work because it destroyed his thesis that Colombus and other Europeans were clueless adventurers that wanted to enslave people.
Make sure you wish everyone a Happy Colombus Day.