Recommended in Program(s): Challenge I, Challenge II, Challenge B, Challenge III Cycle(s): N/A This handy, durable, portable reference chart allows you to make notes and erase them to your heart’s content as you study formal and informal logic. 8 x 10.5 accordion-fold panels, laminated 8 panels © 2017 What families are Classical Conversations resource: https://classicalconversationsbooks.com/products/bs006