For books on Detroit, try these subject searches in the library catalog:
City Planning -- Michigan -- Detroit.
Detroit (Mich.) -- buildings, structures, etc.
Detroit (Mich.) -- history.
Detroit (Mich.) -- economic conditions.
Detroit (Mich.) -- social conditions.
Detroit (Mich.) -- race relations.
These databases may be useful as you begin research on Detroit. You may also want to consult the list of databases at the Cities tab of the Urban & Regional Planning Research Guide.
These databases will provide news articles and images about Detroit.