Thisbookisaboutonlyoneapproachtothesubject-loopquantumgravity.Itisasubjectofconsiderabletechnicaldifficulty,andtheliteraturedevotedtoitisaformidableone.Thisfeaturealonehashinderedthecross-fertilizationwhichis,asdelineatedabove,soessentialforprogress.However,withinthesepagesonewillfindamuchmoreaccessibledescriptionofthesubject,putforwardbyoneofitsleadingarchitectsanddeepestthinkers.Theexistenceofsuchafinebookwillallowthisimportantsubject,quitelikelytocontributesignificantlytotheunknownultimatetheory,tobeassimilatedbyamuchlargercommunityofthe-orists.Ifthisdoesindeedcometopass,itspublicationwillbecomeoneofthemostimportantdevelopmentsinthisveryactivesubfieldsinceitsonset.