In this first paperback edition of a volume originally published by Mohr Siebeck in 2003, stellar international scholars question whether there in fact was a "parting of the ways" between Judaism and Christianity. Includes a new preface by the editors discussing scholarship since 2003.
Explorations on faith and practice along the Jewish-Christian Continuum, during the time when both rabbinic Judaism and orthodox Christianity were defining ourselves. I'd've preferred more archeology, and some examination of the Ethiopian evidence (having its Christian foundations in late antiquity, and being the most "Jewish" of the extant Christian traditions), but well worth reading anyway.