Complex sentence: Different books have dealt with the "el negre" controversy, most notably "El Negro en ik" (El Negro and me) by Frank Westerman, which shows that even naturalist Georges Cuvier knew about the man.
Split into simpler sentences: Different books have dealt with "el negre" controversy. Most notably, "El negre i jo" (El Negro and I) by Frank Westerman, which shows that even naturalist Georges Cuvier knew about the man.