Missing obvious problems can be detrimental to a company, so it's important to work with managers and supervisors to improve observation skills, Karin Hurt writes. Build employee connections, teach managers to think like customers and celebrate small victories.

According to a survey by Accountemps, co-workers and managers think the biggest etiquette mistakes are being late to meetings and gossiping. Being late can delay decision-making, while gossiping can hurt productivity as well as feelings.

Giving your boss feedback can feel awkward and risky, but it can work if handled tactfully, Art Markman writes. Make sure to complain only about major problems, schedule a meeting dedicated to giving feedback, and give as many specifics as possible.

Liane Hornsey has resigned as chief people officer at Uber in light of allegations she overlooked reports of racial discrimination. An anonymous employee emailed the company's whistleblower account and chief legal officer warning he or she would go public if the company did not address the complaints.

Including specific data on your resume about how much you've helped companies grow and how much you helped save can grab the attention of recruiters, Emily Moore writes. Deals closed and additional revenue generated are great key performance indicators to detail, and you should look to your performance reviews to find other potentially useful numbers.

Dedicating time to networking is a key step to ease the feeling of being overwhelmed when starting the job search, Hallie Crawford writes. "Networking is a critical element to your search, since 60 to 70 percent of jobs are found through the hidden job market," she advises.

The history of steel is a journey through millennia of technological advances, from wrought and cast iron to the first steel produced around 400 B.C. to today's skyscrapers, writes Jonathan Schifman. The key to steel is the amount of carbon: Too little or too much, and you're left with less useful forms of iron.