If I was only recommending one book it would be the full edition of the Roman Missal. I am in Australia, so the copy I have is “Roman Missal, English translation according to the third typical edition, approved for use in the dioceses of Australia, England and Wales, and Scotland”, published by Catholic Truth Society, in 2010, ISBN 9781860827303 (the Study Edition).
The Mass can often include other sacraments, so also useful would be newer editions of these books:
The Rites Volume One, Liturgical Press, 1990, ISBN: 0-8146-6015-0.
The Rites Volume Two, Liturgical Press, 1991, ISBN: 0-8146-6037-1.
The Mass can also be combined with the Liturgy of the Hours.
For Mass with a bishop, another official liturgical book is: Ceremonial of Bishops, Liturgical Press, 1989, ISBN 0-8146-1818-9.
For understanding the Mass I would recommend the cathechisms: Catechism of the Catholic Church, Compendium of the Catechism of the Catholic Church, and YouCat: Youth Catechism of the Catholic Church.
The official liturgical books above are quite expensive, so a more “budget conscious” approach might be:
Catholic Mass for Dummies, by Trigilio, Brighenti and Cafone, published by Wiley Publishing, 2011, ISBN 9780470767863.
Ceremonies of the Modern Roman Rite, 2nd Edition, by Bishop Peter J. Elliott, published by Ignatius Press, 2004, ISBN 9780898708301.