From Adobe Acrobat to free online editors and built-in tools, here’s how to merge multiple PDFs into one document.

VSTACK and HSTACK are dynamic array functions, meaning the result spills from the cell in which you type the formula, and any changes to the data in the source arrays are reflected in the stacked ...

A few years ago, I had lunch with the head of a major motion picture studio, who declared that his central problem was not finding good people—it was finding good ideas. Since then, when giving talks, ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...