Thisbookisconcernedwithresultsingraphtheoryinwhichlinearalgebraandmatrixtheoryplayanimportantrole.Althoughitisgenerallyacceptedthatlinearalgebracanbeanimportantcomponentinthestudyofgraphs,traditionally,graphtheoristshaveremainedbyandlargelessthanenthusiasticaboutusinglinearalgebra.