Laudamus Press is an imprint of Hillside Education publishing titles of interest to those devoted to the Traditional Latin Mass.
The Mass for Children by Rev William Kelly
NEW!! Treasures of the Mass by Benedictine Convent of Perpetual Adoration
Passio Christi: Meditations for Lent by Mother St. Paul
Ortus Christi: Meditations for Advent by Mother St. Paul
Triddum Missal (paperback)
All these titles are available at the Priestly Fraternity of St Peter bookstore: http://www.fraternitypublications.com/