The  3  See, for example, Bernanke and Gertler (1999), Cecchetti et al. (2000), Borio and White (2003), ECB (2005), and Kohn (2006).
Through them leaflets, posters, videos etc. were delivered exactly to those who most needed them. Of course we must remember that different nationalities prefer different information channels. For example, Italians watch a lot of TV. Finns also watch television, but they want to learn by reading. Therefore, reaching these people by sending them euro leaflets and brochures proved very effective.