Krahn avoids the hero worship which is common among many rehabilitators of Anabaptism. In his presentation the giants of Anabaptism as well as those of the Magisterial Reformation turn out again and again to have clay feet. No attempt is made to rationalize these apparent weaknesses.... Out of Dutch mysticism there grew a spiritualizing tendency...which could not be confined to the question of the Lord's Supper.
Frank C. Roberts in 'Calvin Theological Journal'
Krahn's greatest service is in the distilling more than a century of Dutch scholarship, and he performs it judiciously.... Especially interesting is his argument that both Reformed Protestantism and Anabaptism had their roots in the Sacramentarian movement of the 1520s.
Alastair C. Duke in 'Journal of Ecclesiastical History'
[The author's] extensive and accurate knowledge of both the modern and the sixteenth-century Dutch language, together with his careful and competent evaluation of the conflicting interpretations of the events, make his survey of Dutch Anabaptism a reliable source of information. Krahn has made a serious attempt to immerse himself in the issues and to assess fairly the clashing opinions.
H.W. Meihuizen in 'Mennonite Quarterly Review'