This section of the errata list provides corrections and clarifications for various errors and inconsistencies in the book "Physics of Collective Beam Instabilities in High Energy Accelerators." The corrections cover a wide range of pages and equations, including: 1. **Table of Contents**: corrected the term "Heat-Tail" to "Head-Tail." 2. **Equations**: corrected several equations, such as changing the exponent in Eq.(1.65) from 2 to 3, and adjusting the reference to Eq.(2.159) instead of Eqs.(2.155) and (2.157). 3. **Text**: corrected minor errors in text, such as changing "25 m" to "20 m" on page 92, and adjusting the reference to a specific equation on page 103. 4. **Figures**: corrected figure labels and added missing marks on the vertical scale in Fig.4.9. 5. **References**: corrected the author's name in Ref.17 from "A. Hoffman" to "A. Hofmann," and updated the reference in Ref.42 from "SSCL Report 606 (1992)" to "Part. Accel. 43, 77 (1993)." 6. **Equations and Text**: corrected and clarified various equations and text, such as adjusting the exponent in Eq.(5.98) and changing "is rater small" to "is rather small." These corrections aim to ensure the accuracy and clarity of the content, particularly in areas related to equations, figures, and references.This section of the errata list provides corrections and clarifications for various errors and inconsistencies in the book "Physics of Collective Beam Instabilities in High Energy Accelerators." The corrections cover a wide range of pages and equations, including: 1. **Table of Contents**: corrected the term "Heat-Tail" to "Head-Tail." 2. **Equations**: corrected several equations, such as changing the exponent in Eq.(1.65) from 2 to 3, and adjusting the reference to Eq.(2.159) instead of Eqs.(2.155) and (2.157). 3. **Text**: corrected minor errors in text, such as changing "25 m" to "20 m" on page 92, and adjusting the reference to a specific equation on page 103. 4. **Figures**: corrected figure labels and added missing marks on the vertical scale in Fig.4.9. 5. **References**: corrected the author's name in Ref.17 from "A. Hoffman" to "A. Hofmann," and updated the reference in Ref.42 from "SSCL Report 606 (1992)" to "Part. Accel. 43, 77 (1993)." 6. **Equations and Text**: corrected and clarified various equations and text, such as adjusting the exponent in Eq.(5.98) and changing "is rater small" to "is rather small." These corrections aim to ensure the accuracy and clarity of the content, particularly in areas related to equations, figures, and references.