Order of Preachers Vocations: Core Documents for Men Discerning a Dominican Vocation

Here are some core documents if you want a closer look at what shapes the Order of Preachers.

Fundamental Constitution
Primitive Constitutions
The Nine Ways of Prayer of Holy Father Dominic
Rule of St. Augustine (basis of Dominican Constitutions)
Book of Constitutions of the Order of Preachers (LCO)
Treatise on the Formation of Preachers (Blessed Humbert of Romans OP)
Lives of the Brethren of the Order of Preachers (1206-1259)
A 13th Century Biography of St. Dominic
The Life of St. Dominic by Fr. Henri John Baptist Lacordaire OP
Many of the Works of St. Thomas Aquinas
Sermons of St. Vincent Ferrer

Other Articles/Documents I would recommend:
The Contemplative Dimension of Dominican Spirituality (Aumann OP)
Of the Different Kinds of Religious Life (Summa II-IIae 188 by St. Thomas Aquinas, particularly Article 6))

Lectures in Dominican History (over 100 pages in PDF format from Fr. Fred Hinnebusch O.P.)
The Dominicans: A Short History (Fr. William A. Hinnebusch, O.P.)
Some good articles on Spiritual Direction & Discernment (various authors)
Dominican Spirituality: Principles & Practice (Fr. William A. Hinnebusch, O.P.)

Here are a few photos from the refectory (dining room) in the novitiate (Cincinnati).