Knowing how we know: evidentiality and cognitive development / Tomoko Matsui, Stanka A. Fitneva -- Evidentials and source knowledge in Turkish / Ayhan Aksu-Koc, Hale Ogel-Balaban, I. Ercan Alp -- Evidentials in Tibetan: acquisition, semantics, and cognitive development / Jill de Villiers, Jay Garfield, Harper Gernet-Girard, Tom Roeper, Margaret Speas -- Evidentiality and trust: the effect of informational goals / Stanka A. Fitneva -- Children's understanding of certainty and evidentiality: advantage of grammaticalized forms over lexical alternatives / Tomoko Matsui, Yui Miura -- Evidentiality and suggestibility: a new research venue / Cagla Aydin, Stephen J. Ceci --Commentary: what we can learn from research on evidentials / Elizabeth J. Robinson.