+ wishlist Author: Barbara Carminati Elena Ferrari Marco Viviani Security and Trust in Online Social Networks (Synthesis Lectures on Information Security, Privacy, and Trust) Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 12% 50 - 99 13% 100+ 14% From $32.67 in bulk Format: Paperback