We have now finished the design of Discovery of Deduction and are now moving on to the last stage before printing–final proofing. We take our books through two proofs, by two different editors. We are very excited as this book has received a tremendous amount of effort and attention from three different authors, producing a truly excellent formal logic text for upper school students. In my opinion, the brilliance of the book results from a combination of clear, illustrated teaching and practical, relevant (and creative!) application.