What Were the Twin Towers by Jim O'Connor
It is good that this books makes sure, a few times, to mention that people got sick from the aftermath and trying to help. p4 and later (I guess I didn't mark the other places.) Whoa! The final plan for each tower called for twenty-three express elevators, seventy-two locals, and nine freight elevators. p32 One of the judges [for the memorial design competition] was a famous architect named Maya Lin. She said Arad "made something positive out of the void." p93