Formal interior architecture education is a design-focused type of discipline. In design education, the only way to learn how to design for students is to experience the design by his/her own. In this context, apart from formal education, informal studies such as workshops have an undeniable contribution for student's design thinking techniques. The purpose of the research is to discuss the contributions of workshops on formal education as an informal learning tool. In this framework, workshops are studied as an informal learning environment and the evaluation of skills gained during the workshops through a survey administered to the participants of two workshops are examined in order to discuss the contributions of workshops on formal education. (C) 2014 The Authors. Published by Elsevier Ltd.