This section of the errata list corrections and clarifications for the book "Aide Multicritère à la Décision: Méthodes et Cas" by Economica, Paris, published in 1993. The corrections include: 1. Page 38: The definition of a complete and transitive relation $H$ should be corrected to specify that $T$ is the asymmetric part and $V$ is the symmetric part. 2. Page 287: The inequality $d_k(b, a) < c(b, a)$ should be corrected. 3. Page 312: The term "d'actions incomparables" should be corrected to "actions incomparables." 4. Page 325: In Note 1, the reference to "Barrett" should be corrected. 5. Page 386: The arc from $a_1$ to $a_7$ in Figure 6.2.3 should be removed. 6. Page 394: In the case iii), the phrase "l'unique catégorie $C^{x+1}$" should be used. 7. Page 421: The inequality $\lambda_2 < \lambda_1$ should be corrected.This section of the errata list corrections and clarifications for the book "Aide Multicritère à la Décision: Méthodes et Cas" by Economica, Paris, published in 1993. The corrections include: 1. Page 38: The definition of a complete and transitive relation $H$ should be corrected to specify that $T$ is the asymmetric part and $V$ is the symmetric part. 2. Page 287: The inequality $d_k(b, a) < c(b, a)$ should be corrected. 3. Page 312: The term "d'actions incomparables" should be corrected to "actions incomparables." 4. Page 325: In Note 1, the reference to "Barrett" should be corrected. 5. Page 386: The arc from $a_1$ to $a_7$ in Figure 6.2.3 should be removed. 6. Page 394: In the case iii), the phrase "l'unique catégorie $C^{x+1}$" should be used. 7. Page 421: The inequality $\lambda_2 < \lambda_1$ should be corrected.