Certifications aren’t inherently useless. Some are necessary. Others can be helpful when paired with real work. But on their own, they rarely change hiring outcomes.

These are the publicly traded U.S. stocks owned by Warren Buffett's holding company Berkshire Hathaway, as reported to the Securities and Exchange Commission in filings made available to the public.

Big Tech is in the midst of an M&A spree in the AI space, and ServiceNow’s recent acquisition of the data analytics software ...