■ 'Blood Donors & Recipients: Where Goodness Meets Gratitude'
Lauren Ward Larsen, the president of the Foundation for America's Blood Centers, will discuss her memoir, "Zuzu's Petals: A True Story of Second Chances," which chronicles her experience with near-fatal preeclampsia and her life-saving blood donation, tomorrow (March 31) at 7 p.m. at Hillview Center, 3373 Hillview Ave., Palo Alto. For more information, visit Cafe Scientifique.
■ Author: Guy Kawasaki
Guy Kawasaki presents his new book, "Enchantment: The Art of Changing Hearts, Minds, and Actions," tomorrow (March 31) at 7 p.m. at Kepler's, 1010 El Camino Real, Menlo Park. For more information, visit Kepler's'.