Screen Aspect Ratio & Dimension Calculator

Calculate image dimension (in pixels) from total number of pixels and aspect ratio Calculate the missing value from two of height, width and/or aspect ratio Calculate optimal viewing distance from screen size Calculate screen dimensions (height/width/area, in inches or cm) from diagonal measurement and aspect ratio website:        

Digital Bookmaking Tools: A Roundup

For those of us who aren’t code slingers, what’s the easiest way to build a digital book? I’ve noticed a small but growing number of tools, ranging from big guns like those on offer from Adobe to iPad-based efforts that aim to make publishing a touch and drag affair. Below is a list I’ve been compiling over the past few weeks. Some of these solutions get you an iPad app, some get you ePub, some are for web-based books. Website:


Sculptors’ Tools, Materials and Studio Equipment, for Carving, Modelling, Mouldmaking, Casting & Restoration. Website: