Jeff MerronMacworld

Jeff Merron is a writer and editor who wrote full-time for ESPN.com's Page 2 for five years and has contributed to Slate, Consumers Digest, Yahoo.com, Information Week, Byte Magazine, and many other national outlets.

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Molecules for iOS review: This interactive science book brings learning to a whole new level

Molecules by Theodore Gray is the perfect sequel to The Elements.

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GoodReader 4 review: An excellent universal app for PDF management

Read, edit, and create new files with this slick upgrade to a longtime favorite.

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Fix This App: Medium for iOS

This story sharing and consuming platform has gorgeous content, but its app is not up to snuff.

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Taschen's 100 All-Time Favorite Movies makes the interactive jump to iPad

Though this recently released iBook has some nifty features, releasing it as a standalone app could have shown off its untapped multimedia potential.

on pcworld.com