- Use third-party ebook reader apps that support the ePub format. Many iBooks are ePub files which can be opened by apps like Adobe Digital Editions, FBReader, Calibre, etc. These allow you to transfer and read iBooks on a Windows PC.
- For DRM-protected iBooks purchased from the iTunes Store, you can authorize your Windows PC on iTunes, then go to Account > Purchases > Books and re-download the books to your PC. They can then be opened using a compatible ePub reader app.
- Use the Coolmuster iOS Assistant app to transfer purchased and non-purchased iBooks from an iPhone/iPad to a Windows PC. It removes DRM protection so the books can be opened in any reader app.
- For books purchased on iTunes, open iTunes on your Windows PC, go to Account > Purchases > Books and download them directly without needing to connect your iPhone/iPad.
So in summary, while there is no official iBooks Windows app, there are reliable ways to transfer both purchased and free iBooks to a Windows PC and read them using compatible third-party ebook reader software. Let me know if you need any clarification or have additional questions!