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What Tree Is That? is a unique field guide that helps you identify the common trees of the United States and Canada using a step-by-step approach. Learn to recognize more than 250 tree varieties through their leaf margins and textures, the arrangement of leaves on twigs, pods or nuts, and trunk bark while referring to this scientifically illustrated, 164-page book.As you compare specific characteristics to original botanical illustrations, this easy-to-use manual guides you to a conclusion by posing a series of questions. Using the guides proven method, youll be able to distinguish hundreds of different tree varieties whether youre young or old, an amateur or a professional. Recognized artist Karina I. Helm created original illustrations for each of the trees included. A graduate of the prestigious University of California Santa Cruz science illustration certificate program, Helm satisfies both aesthetics and accuracy in the botanical images she renders. Her long-term associations with members of the nations scientific community contributed to the brilliant precision of Helms designs.The What Tree Is That? guide is a practical educational tool containing both common and scientific names. In addition to artistic depictions, it provides specific measurements in both inches and centimeters. Equipped with a durable, water-resistant cover, this 8.5 x 4-inch companion guide slips easily into your pocket for quick reference on your hikes.