JD Sartaintech journalist, PCWorld

JD Sartain is a technology journalist from Boston. She writes for PCWorld, Network World, CIO, & several other tech magazines.

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PowerPoint tips from Duarte's Five Rules Presentation

Duarte's Five Rules is a classic PowerPoint presentation that can make you an instant expert. Study the slides and read these tips to learn more.

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Excel Date & Time functions tutorial: EDATE, YEARFRAC, EOMONTH, NETWORKDAYS.INTL

We delve into the Excel Date & Time functions EDATE, YEARFRAC, EOMONTH, and NETWORKDAYS.INT. All are handy for going back and forth in time on retirement dates, expiration dates and more.

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How to create Motion Paths in PowerPoint

Building motion into PowerPoint slideshows makes them come alive like no static images could ever hope to do. Here's our step-by-step guide through all the features and options.

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Excel tips: 6 slick shortcuts, handy functions and random-number generators

You can't have too many Excel tips. These cover some handy shortcuts, and useful functions for calculation payments or generating random numbers.