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
178 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
178 months ago
Now I know why Apple acquired Anobit.

128GB iPads can't come soon enough.
Score: 7 Votes (Like | Disagree)
sexualchocolate Avatar
178 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
178 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
178 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
178 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

iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
xiaomi apple ad india

Apple and Samsung Push Back Against Xiaomi's Bold India Ads

Friday August 29, 2025 4:54 am PDT by
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging." Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
iOS 18 on iPhone Arrow Down

Apple Preparing iOS 18.7 for iPhones as iOS 26 Release Date Nears

Sunday August 31, 2025 4:35 pm PDT by
Apple is preparing to release iOS 18.7 for compatible iPhone models, according to evidence of the update in the MacRumors visitor logs. We expect iOS 18.7 to be released in September, alongside iOS 26. The update will likely include fixes for security vulnerabilities, but little else. iOS 18.7 will be one of the final updates ever released for the iPhone XS, iPhone XS Max, and iPhone XR,...