Key Reading to Understanding the History of the Liturgical Revolt After Vatican Council II

Sacrosanctum Concilium
The Reform of the Liturgy
The Development of the Liturgical Reform
The Bugnini Liturgy and the Reform of the Reform
The Organic Development of the Liturgy
Looking at the Liturgy
The Spirit of the Liturgy
The Holy Mass
The Holy Sacrifice of the Mass: Dogmatically, Liturgically, and Ascetically Explained

These works are the key to understanding the crisis we have in the Church today, liturgically. There are more books written, but these speak directly to the issue that is at hand. In order to be able to coherently speak to the issue, one must study the issue. I've read all of these books and others over the last 15 years. If we are to follow the mandate of Vatican Council II and know our faith, this is the first place to start, because it is this place which most Catholics see their faith in a concrete way.

I know others will have other sources, but these are the most important in my very humble opinion.