Gabe Zichermann signs his book ‘Gamification by Design’ at the SXSW bookstore.
Tracy Fullerton signs her book ‘Game Design Workshop’ at the SXSW bookstore.
David Kadavy signs his book ‘Design for Hackers: Reverse Engineering Beauty’ at the SXSW bookstore.
Emily Pilloton signs her book ‘Design Revolution: 100 Products That Empower People’ at the SXSW bookstore.