"处世自助手册" can be translated into English as "A Self-Help Guide for Social Interaction and Living" or more concisely as "A Self-Help Manual for Navigating Life".
The first translation emphasizes the social and living aspects, using "Social Interaction and Living" to convey the idea of getting along with others and managing daily life.
The second translation is more general and concise, using "Navigating Life" to broadly cover the challenges and strategies of living one's life, with "Self-Help Manual" indicating the book's purpose as a tool for self-improvement and guidance.
Both translations capture the essence of the original Chinese title, which suggests a practical guide for individuals to better handle social situations and life challenges on their own.