Author Jeremy Scahill. Jeremy Scahill discusses his new book, "Dirty Wars," answers questions and signs books. Scahill's book goes beneath the surface of America's covert wars, conducted in the shadows, outside the range of the press, without effective Congressional oversight or public awareness. Hosted by Sabrina Jacobs. 7:30 p.m. May 10. First Congregational Church, 2501 Harrison St., Oakland. $15 door. 510-967-4495, www.brownpapertickets.com/event/360924.

Fairyland Garden Weekend. Garden Weekend at Children's Fairyland features Uncle Jer's Travelling Bee show, useful tips from Plant Heroes Activities and SPN/APGA, seed packets to make for Mom, free tomato or flower plant while supplies last, and more. 10 a.m. to 4 p.m. May 11 and May 12. Children's Fairyland, 699 Bellevue Ave., Oakland. $8. Special, free garden tours start at 9 a.m. RSVP at horticulture@fairyland.org. 510-452-2259, www.fairyland.org.

Oakland Internet Cat Video Festival. Plan a positivitly purfect evening at the Bay Area premiere of the Walker Art Center's Internet Cat Video Festival benefiting East Bay SPCA, with a special appearance by Internet sensation, Dusty the Klepto Kitty. Enjoy a safe & fun environment; adopt cats & kittens from animal rescue groups; get info on fostering kittens; listen to live bands playing cat-themed music; check out in local food trucks, pet product vendors, local artisans selling arts & crafts. 3 to 10 p.m. May 11. Great Wall of Oakland, 2201 Broadway, Oakland. $10 adults. $5 youth. www.oaklandcatvidfest.com.