Tahdhib al Akhlaq:A Hadith Guide for Personal and Social Conduct [Sayyed Abdul-Hayy al Hasani (Nadwi),45 short chapters On Manners, Morals and Wisdom, 1b2, PB, 162PP]
This book is masha'allah the best in this subject that i have ever read.
I would say this covers the whole area of the akhlaaq or manners with couple verses and shaih ahadiths in every branch.
So a must to read and act on. This book for kids and adults scholars and non sholars.