ANNIVERSARY MASS

A Mass celebrating the 20th anniversary of the Croatian Catholic Mission will begin at 3 p.m. today at Our Lady of Victory Church, 4835 MacArthur Blvd. NW. 301-897-5085.

PEACE LECTURE

"Pathways to Peace with Catherine of Siena and Henri Nouwen," a four-part weekly lecture, will begin at 10 a.m. and 7:30 p.m. Tuesday at St. Ann's Catholic Church, 4001 Yuma St. NW. Admission is $25. 202-966-6288.

PHOTOGRAPHY EXHIBIT

"The Great Inca Trail," a photo exhibit sponsored by the Embassy of Peru, will open at 10 a.m. Wednesday at Pope John Paul II Cultural Center, 3900 Harewood Rd. NE. Admission by donation. 202-635-5400.

UNITY WORLD DAY OF PRAYER

The 12th annual Unity World Day of Prayer, an interfaith event, will begin at 7 p.m. Wednesday at Unity Center of Light, 3501 Moylan Dr., Bowie. 301-464-5581.

'YOUR BEST LIFE NOW'

A book signing of Joel Osteen's "Your Best Life Now" will begin at noon Friday at Olsson's, 418 Seventh St. NW. 202-638-7610.

BOOK SALE

A two-day book sale will begin at 3 p.m. Friday at Shepherd of the Glen Lutheran Church, 14551 Burntwoods Rd., Glenwood. 410-442-1204.

PRAYER AND PRAISE

"Prayer and Praise Night," an event featuring music and the Rev. Sandra Denby, will begin at 7 p.m. Friday at Linden-Linthicum United Methodist Church, 12101 Linden Linthicum Lane, Clarksville. 410-531-5653.

VOCAL PERFORMANCE

A free performance featuring soprano Cornelia Frazier will begin at 7:30 p.m. Friday at Columbia Baptist Church, 103 W. Columbia St., Falls Church. 703-534-2508.

-- Timothy Wilson

Send items to Religion Events, 1150 15th St. NW, Washington, D.C. 20071; fax to 202-334-5417; or e-mail to rpevents@washpost.com.