When we offered the sessions on the Spirituality of Communion in the different parishes, we were able to sell more copies of our   “Vatican II Made Simple”. One woman bought two copies; she wanted to give one to a friend. Next week she rushed over to me just as we were starting and said “Brilliant”. She saw I was taken aback by her remark and explained: “Vatican II Made Simple: I read it, it’s brilliant”.
So that’s an unsolicited recommendation.