The value of a particular major lasts for a few years but soft skills are the key to success in any field from science and engineering to business and humanities. In fact, they may be the most important skills you can invest in for long-term success. Here are some useful resources
Soft skills
The importance of communication skills for engineers
http://pcs.ieee.org/podcast-communication-and-success-anthony-fasano/
http://www.abc.net.au/news/2015-08-24/australian-students-chasing-non-existent-careers/6719370
Emotional intelligence for engineering students
http://pcs.ieee.org/the-role-of-emotional-intelligence-and-engineering-communication/