In Defense of eReaders

I’m a dedicated, hardcore eBook reader. Back in 2009, my wife picked up a bulky, strange reading device: the Kindle 2. This was only about a year and a half after the launch of the first iPhone, so full touch-screen devices still hadn’t quite taken over. The Kindle 2 was big for its screen size, with giant bezels and a strange integrated keyboard and d-pad used for navigation and searching. It was goofy-looking, and a little awkward to use.

After reading on it for ten minutes, I was hooked. See, I’d tried to read eBooks in the past, primarily on a computer, and never connected with them. The experience was jarringly different, until someone took the time and energy to design a digital book experience specifically for readers.

Not long after, both of us upgraded to the Kindle 3, a slightly less awkward – but still tied to legacy features like a physical keyboard – device, and we never looked back. Within a year we had begun the process of replacing all our books with eBooks and had sold our entire, substantial physical library.

I’d like to talk to you about the glory of eReaders, and why I think they get an undeserved bad rap from parts of the reading community.

Let me start this off by saying I’m not going to discuss the more ephemeral joys of reading physical books. There is a significant segment of the reading population who thoroughly enjoy the feel, the look, and even the smell of tree-books. For many, having a personal library of books they can display on shelves is just as important as the reading experience itself.

I do not, in any way, begrudge these folks. I’m not here to argue that one way is “better” than the other, or to tell you that eReaders are an objectively superior choice. I think the “eBook vs Tree Book” debate/rivalry/war/whatever is absurd. These aren’t two sides of a conflict; rather they’re two sides of the same coin.

We’re all readers.

I could wax rhapsodic about why I love my eReader. It’s light and ergonomic. I can read in almost any conditions. It’s water resistant. I can easily read it one handed. I have over 1,500 books with me wherever I go, and I never have to pick-and-choose which ones I take on vacation or out of the house. I no longer have to worry about shelf space. I never have pack and lift boxes of books when I move. The list goes on.

In specific, though, I want to address a physical complaint I frequently see in these discussions, and the misconception fueling it.

I can’t count the number of times I’ve seen readers deride eBooks in favor of physical with the specific complaints that they can’t concentrate when reading eBooks, or that reading eBooks hurts their eyes or gives them headaches, or that they can’t read for long sessions. In many of these instances, it’s made clear that the person lodging these complaints has never used an eInk device, and has only read eBooks on a phone, tablet, or computer screen.

eInk screens – like what you’ll find on Kindle, Kobo, and older Nook devices (as well as a ton of others now, like the reMarkable) are a completely different beast from your typical LCD/LED screen, and are built specifically with readers in mind.

A lot of digital ink has been dropped about the problems with staring at screens all day. Google “Computer Vision Syndrome” or “Blue Light Exposure”, and you’ll run across endless articles about the problems we all face in a world run by screens. While looking at screens for extended periods isn’t likely to cause any lasting damage, things like eye strain, headaches, and blue light exposure are all very real issues.

But, for the most part, they don’t apply to eInk screens, for two main reasons: eInk screens are not backlit, and they don’t constantly refresh.

First and foremost, eInk screens – even the ones with built-in lights – are not backlit. While staring at any brightly-lit screen for hours on end – even with external lights – might cause issues, backlit screens beaming light directly into your eyeholes has been proven a major cause of eye-strain and headaches.

eInk screens, however, are opaque, and thus are impossible to backlight. The misconception of backlit eInk screens is constantly reinforced by articles and reviews where the authors casually use the word “backlit” even though it’s incorrect. eInk manufacturers designed a clever type of front-light for modern eInk devices where a layer is placed over the top of the eInk screen that redirects lights from the edge of the device down onto the page to light it while still being transparent for reading. This is the type of light you’ll find on almost every newer eReader like the Kindle Paperwhite/Oasis or the Kobo Aura.

But if you find the front lights on devices like this still hurt your eyes, you can turn the lights off, and still read. Early eReaders didn’t even have built-in lights, so you’d light them just like you would a book – with room light or a clip light. Some of the less-expensive models still don’t have built-in lights. eInk was designed to be digital paper (some early devices actually called it “ePaper”), readable just like you’d read a paper page.

Part of delivering this feature was designing a screen that didn’t need to be constantly refreshed. Unlike LCD screens that are refreshing anywhere from 30 to 240 times per second (another potential source of eye strain), eInk screens only refresh when they’re changed. So, if you have a static page of text, it’s just that: static. The individual pixels are locked into a particular configuration – displaying a book page, for example – without the need to consume power to maintain it. So, when you turn the page on an eBook, the eInk screen draws a minuscule amount of battery power to rearrange the pixels on screen, then goes dormant. This is one of the reasons why eInk devices have such amazing battery life.

And to make sure I address an earlier point: Blue light exposure can still be an issue. Until recently, the LED side-lights on eReaders were still well into the cool end of the spectrum, and could result in the same circadian-rhythm-altering issues as other screens. Newer eInk devices have started integrating warm light features, though, so you can adjust the amount of blue light coming off your screen (my Kindle Oasis does this, for example, and it’s phenomenal). And you can still always use an external light.

What this all boils down to is that modern eInk screens – the ones you find on dedicated eInk devices – are no different than reading a physical book page. They’re static, non-backlit, non-refreshing displays, specifically designed not to cause the same types of eye strain as your average phone or computer screen. It’s as far from reading on a phone screen as a physical book is.

So, if eye strain, headaches, or inability to concentrate are reasons you’ve given up on eBooks in the past, but you’ve only ever tried eBooks on your phone, tablet, or monitor, give a dedicated eReader a try. They combine all the benefits of physical books (except smell, of course) with all the convenience of a modern device. You might be surprised at how great the digital reading experience can be when it’s supported by the right hardware.

About Luke M.

Luke Matthews is a writer, board gamer, beer drinker, and all-around geek. He currently lives in the Seattle area with his wife, two cats, and two German wirehaired pointers.
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