The key skills for successful consultants that clients value most include expertise, communication, problem-solving, adaptability, and ethical conduct. Consultants need to be able to offer specific solutions to problems and improve business processes. Eight essential skills are:

1. Creative Thinking: Going beyond standard approaches to generate new ideas and solutions.
   
2. Conceptual and Practical Thinking: Using visionary, innovative thinking and turning ideas into actionable plans.
   
3. Problem-Solving: Quickly and thoughtfully resolving issues with limited information.
   
4. Clear and Empathetic Communication: Communicating solutions with clarity, conciseness, and understanding of employees’ concerns.
   
5. Collaboration: Working effectively with all levels of staff and stakeholders.
   
6. Organization and Time Management: Efficiently managing meetings and schedules to respect everyone’s time.
   
7. Curiosity: Asking insightful questions and understanding industry dynamics to gather relevant information.
   
8. Credibility: Building trust through experience, education, and a solid reputation.

These skills help consultants adapt to different clients and roles, improving their effectiveness and increasing their value in the marketplace.