mathematics form and function by Mac Lane (sweeping coverage of all of math at about the undergrad math major level by one of the best mathematicians of the 20t

mathematics form and function by Mac Lane (sweeping coverage of all of math at about the undergrad math major level by one of the best mathematicians of the 20th) and the power broker by Caro (no clue really - Robert Moses was the most effective public works new York has ever had, brought down Tammany hall but also quite racist - came highly recommended in an r/NYC thread about him)