Sigal Barsade

No information is provided about the author of Under Pressure.

The author's name is given as Knowledge@Wharton, but this appears to be a brand or organization name rather than an individual author.

Without additional details, it's not possible to provide a summary of the author's background, qualifications, other works, or writing style.

More context would be needed to offer insights into the author's expertise or perspective on the book's subject matter.