Father Baker, who more than 300 years ago wrote this veritable encyclopedia of personal prayer, was a figure who not only captured the imagination and affection of his contemporaries, but receives today the tribute of continued attention from pious readers. Seventy-five years ago another Benedictine brother J. Norbert Sweeney, took the prayer treatises of Father Baker which had been in the custody of the Benedictine Congregation since 1641 (the time of Father Baker's death) and brought out an edition greatly treasured by faithful readers. This Harper edition brings to Americans the first adequate supply. Essentially this is prayer instruction and guidance for the deeply contemplative- those who embrace a life of real inversion. But it does not altogether neglect the secular or lay Christian in his search for holiness or ""wholeness"" and certain chapters particularly devoted to such have depth and meaning.