About Heather Dubbeldam Books by Heather Dubbeldam Twenty + Change 04 by (author) Heather Dubbeldam Twenty + Change 03 by (author) Heather Dubbeldam & Lola Sheppard Twenty + Change 01 Emerging Toronto Design Practices edited by Heather Dubbeldam & Lola Sheppard Twenty + Change 02 by (author) Heather Dubbeldam & Lola Sheppard