Msgr. Gamber, in this collection of essays, engages what Alquin Reid refers to as 'the big questions' of the 20th century liturgical reform. Without devolving into the egregious polemics that are so often associated with such discussion, Msgr. Gamber addresses the questions of communion in the hand, language, posture, etc as they relate to the Roman Liturgy as we know it today.
Keeping in mind that HH. Benedict XVI, as Cardinal Ratzinger, wrote a laudatory preface to one of Msgr. Gamber's other books, we can hardly claim to be serious about the liturgical reform without taking the views of Msgr. Gamber into consideration.
While some of his scholarship has been placed into question in the past few years, this is hardly sufficient to discount his principled position on the liturgy and the radical and rapid development (read: change) thereof that we have seen in the last 100 years.