OK, Having purchased the encyclicals and the apostolic documents of John Paul II/Benedict XVI, I was wondering why the 1988 motu proprio Ecclesia Dei was not included.
Here's the link if you need a reference:
http://www.vatican.va/roman_curia/pontifical_commissions/ecclsdei/documents/hf_jp-ii_motu-proprio_02071988_ecclesia-dei_en.html