Devotion to St. Dominic is a rather short work written by the Provincial of Toulouse (at the time), and he exhorts and calls his fellow religious to rediscover the gifts of St. Dominic in the Dominican Order.
I powered through the book in probably one or two hours (it was not a very long or hard read), but it was chock full of someone who showed great filial devotion to his holy father St. Dominic.
Having read it, I’d say it is most fitting, obviously, for the brethren of the Order, as it was directed towards them and is focused on becoming a greater son of Dominic. However, it would be fruitful, I think, for anyone discerning a vocation with Dominic’s illustrious Order of Friars Preachers (either in clerical priesthood or the Third Order/Lay Dominicans).
It was also translated by Fr. George Christian, OP, who spent a number of his years at St. Louis Bertrand in Louisville, KY, and who is now assigned to St. Dominic’s in Washington, DC, which makes it more interesting (Fr. Christian, OP is quite the translator, as he has a number of other works under his belt!).