I hope you all had a safe, healthy, and enjoyable holiday season. I would like to start off this issue remembering Dr. Shannon Pratt. Shannon Pratt was a pioneer and driving force behind the progress made by the business valuation profession. With his publication of the First Edition of Valuing a Business in 1981, he codified business valuation as we know it today. Since then, he has been the engine that's driven the growth of our profession whether it's his books, teaching, conference presentations, mentoring or the various other things he has developed over time, all of them have become an integral part of our daily practice and it's difficult to imagine the profession without him. Our editor emeritus, Roger Grabowski, has provided an article in this issue which describes his time with Shannon while they were working on the latest edition of Cost of Capital. We've included that in this edition in remembrance of Shannon Pratt and all he's done for our profession.We also have some announcements. First, American Society of Appraisers has adopted the recently released International Business Valuation Glossary, which is included in its entirety in this issue. The glossary is the result of a collaborative effort by ASA, CBV Institute, RICS, TAQEEM and the International Valuation Standards Council, who have worked together to provide a common understanding and consistency of technical terms used within the various sub-practice areas of business valuation. Our industry has evolved rapidly over the last 20 years when the glossary was last updated, particularly with the introduction of fair value in IFRS and US GAAP and the increasing importance of intangible asset valuation. The update process began in May 2019. Following the December 2020 public comment period, more than 40 parties provided valuable input, which was thoroughly reviewed and vetted where appropriate. ASA's technical advisors were Lucas Parris and former BVC Chair, Jeff Tarbell. Thanks to Jeff and Lucas and all those involved in this monumental effort.Second, we have a change of leadership. Erin Hollis is the new chair of ASA's BVC. Erin replaces Ken Pia, who was wonderful to work with these past two years. Thanks to Ken for his service and welcome to Erin. Please make sure to read Erin's letter which is attached to this issue of the Business Valuation Review.And now on to our contributors. Vincent Covrig et al. address the volatility of financial metrics used in valuing contingent consideration. Also, Gil Matthews provides a biting commentary on pre-IPO studies. There's been so much written in this area; however, Gil provides additional research and his own opinion's regarding the applicability of them in practice. Thanks to Vincent and his esteemed colleagues and also to Gil for their contributions to our body of knowledge.And to all our readers, please enjoy the issue and as always let me know if you have any ideas for future articles.