When market volatility creates problems, real estate appraisers must develop a deeper understanding of the valuation process and a greater ability to handle a wide variety of assignments, according to a new book published by the Appraisal Institute.

“Valuation by Comparison,” second edition, by Mark R. Ratterman, MAI, SRA, examines common pitfalls that appraisers encounter when searching for data. The book also presents online research tips that can help practitioners find information in markets where data is scarce, inconsistent or misleading.

“Designed with the needs of the intermediate-level residential appraiser in mind, the text updates the first edition of ‘Valuation by Comparison’ by addressing recent changes in real estate markets and presenting new, innovative ways to solve persistent appraisal problems,” Appraisal Institute President James L. Murrett, MAI, SRA, wrote in the book’s foreword.

“Valuation by Comparison”explores creative techniques that appraisers can use to understand market behavior and produce logical, well-supported opinions of value.

“Valuation by Comparison,” second edition (ISBN: 9781935328735) is a 163-page spiral-bound book. It is available for $50 ($40 for Appraisal Institute professionals). Call 888-756-4624 or order online.