pearsonbiology
Cult of Mac took a look at the size of the digital textbooks available on iBooks after today's education-focused media event. File sizes range from Pearson's 793MB Environmental Science up to a hefty 2.77GB for Biology.


- Pearson’s Environmental Science – 793MB
- National’s Chemistry – 959MB
- E.O. Wilson’s Life On Earth – 965MB
- McGraw Hill’s Algebra 1 – 1.09GB
- McGraw Hill’s Geometry – 1.22GB
- McGraw Hill’s Physics – 1.25GB
- McGraw Hill’s Biology – 1.49GB
- Pearson’s Biology – 2.77GB

For regular authors, Apple limits the file size of books created with the iBooks Author app to 2GB -- something that Pearson's tome easily exceeds. Unsurprisingly, major publishers get to bypass limits that the average author must abide.

Top Rated Comments

cyprian.pl Avatar
180 months ago
Before kids could complain that books don't fit their backpack, now that books don't fit their iPad.
Score: 10 Votes (Like | Disagree)
nuckinfutz Avatar
180 months ago
Now I know why Apple acquired Anobit.

128GB iPads can't come soon enough.
Score: 7 Votes (Like | Disagree)
sexualchocolate Avatar
180 months ago
A 500 page text book at 2.77GB is 5.54MB/page... maybe tone down the picture resolution a bit?!

Or allow downloading of individual chapters?! :rolleyes:

Maybe Apple told them to make the books ready for higher resolution iPads? When they are going to announce a Retina display iPad 3, it makes sense to have all these things ready for it. Just a hopeful guess.
Score: 6 Votes (Like | Disagree)
ArtOfWarfare Avatar
180 months ago
Or allow downloading of individual chapters?! :rolleyes:

That's actually a pretty good idea... It seems like frequently teachers only teach select chapters out of a textbook, like, 12 chapters out of a 20 chapter textbook.
Score: 4 Votes (Like | Disagree)
centauratlas Avatar
180 months ago
For something like biology, high res is great. For example you can see a cell at 10 X and then by zooming take it down all they way to 1000 X (for example). So you could look at cells with different conditions, different types of cells or whatever. Imagine checking out red blood cells that are anemic vs normal or sickle cell at amazing resolutions without having to go to a lab, just while studying.

Or an image sequence of a virus infecting a cell. Lots of amazing stuff. And for most of this type of thing you want lossless compression so you don't lose details.

Ditto for Chem. Or Physics. Or Computer Engineering to zoom in on an entire CPU layout.

Think about a book on nano-tech too! Interactive exercises.

I can see why it might need to be large for many books - hopefully the size limits are bumped up for everyone eventually.

Pretty cool - gives lots of new capabilities. I think Steve J would've really loved that type of capability.

A 500 page text book at 2.77GB is 5.54MB/page... maybe tone down the picture resolution a bit?!

Or allow downloading of individual chapters?! :rolleyes:
Score: 3 Votes (Like | Disagree)
charlituna Avatar
180 months ago
This will be interesting. Especially for schools iPads have to be as cheap as possible and now it seems that the 16GB version will be quite insufficient.

Not really. Schools aren't going to care about leaving space for students to have music and games on the iPads. Especially if they are school owned and loaned to the students. When you consider that most students are taking between 6-8 classes, a 16 GB could be exactly the right size for these texts which is all the school is going to care to have on the iPads.
Score: 2 Votes (Like | Disagree)

Popular Stories

Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
iOS 26

Apple Releases iOS 26.1 With Liquid Glass Toggle, Slide to Stop Alarm, New Apple Intelligence Languages and More

Monday November 3, 2025 1:11 pm PST by
Apple today released iOS 26.1, the first major update to the iOS 26 operating system that came out in September, iOS 26.1 comes over a month after iOS 26 launched. ‌iOS 26‌.1 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings > General >...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
Early Black Friday Deals 2

The Best Early Black Friday Apple Deals

Sunday November 2, 2025 10:04 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...