A corrected edition of The Cartoon Guide to Calculus is now in print and available. This fixes nearly all the typos, missing minus signs, and other goofs in the first edition. The new edition can be identified by an author’s note at the bottom of the the Acknowledgments page. On the copyright page, the corrected edition has a printing number of 4 or higher.
Because a few of the problems have been changed or moved, readers of the corrected editions should refer to this updated pdf of Solutions to Selected Problems in the Corrected Edition rather than the older document, which is still available for folks with the older printing.