Michelle Bodle shares an overview of Centering Prayer and how you can incorporate it into your devotional time.
Brown, Patricia D. Paths to Prayer: Finding Your Own Way to the Presence of God. San Francisco: Jossey-Bass, 2003.
Calhoun, Adele Ahlberg. Spiritual Disciplines Handbook: Practices that Transform Us. Downers Grove: IVP Press, 2005.
There are also several great Centering Prayer apps available for your devices that have options to guide you through a time of prayer. Simply search for “Centering Prayer” in the App Store and Play Store.