I purchased that book from Tan Publishers back
in the 1980's and read it at lease twice. It
is in paperback, and not expensive.
Since it has been mentioned, I will read it
again.
Baronius Press now sells a very handsome hardback as well (that is very tiny, can easily be carried around) for the same price as the paperback by TAN.
I will have to return to it one day, perhaps a few months from now. As with
The Imitation of Christ, I feel that this book will be a continual source of spiritual enlightenment and inspiration.
Although next I should probably read the Holy Bible....