The Liturgy of the Hours is the official prayer of the Catholic Church and its main format is a four volume set of books. However for laity a one volume book called Christian Prayer is also available.
It consists of seven prayers for different times of the day: Morning, Midmorning, Midday, Midafternoon, Evening, Night, and an Office of Readings which can be said at any time of the day. For laity, especially those just getting started, the Church encourages Morning Prayer and Evening Prayer; the “hinge” hours, as they’re called (an “hour” here is not 60 minutes; it’s a time of day according to the ancient Roman concept of watches; each prayer lasts about 15-20 minutes; as little as 5 minutes for Night Prayer). Don’t try to do all of them; you’re likely not a monk, but Morning Prayer and Evening Prayer are quite manageable.
If you want to get a taste of it, if you have an iPhone or Android device, download an app called iBreviary. It calculates for you the texts of the day so all you have to do is download and pray. Normally those who use books would set ribbons to the various parts of the Office.
Those of us who have adopted the Liturgy of the Hours as our prayer will attest to its value and power; it’s “addictive”, so to speak. This is because it consists primarily of Scripture, and is the Prayer of the Church, and so one who participates in that prayer, even when alone, takes on a kind of prayer that is extraordinarily powerful because the whole Church is offering it up.