Ja zu Gott im Dienst an der Welt Book

A very interesting book - Pope John Paul I writes to various literary and historical figures throughout history, mentioning his agreements, and listing his disagreements with their works, with a view of today's (at the time of his writings) world.
I feel it was a good book, but lacking the familiarity of the letters' addressees, I feel like I didn't get the full, intended, effect that was intended. But, that fact also builds a wonderful cause for the reader to find, and take up, works by the addressed personalities.
He writes plainly and is easily understood, and his contrast between the works and the modern world leaves little misunderstanding where he stands, and educates the reader to the authors' views.
Altogether, the book is good - and its format - of numerous letters to famous writers, politicians, theologians, and at once, to Christ himself - makes it a great book to pick up, and put down, reading and digesting slowly one letter at a time.