I bought the ACMP study guide (HPE6-A44) from HPE press as an ebook but unfortunately they have chosen to use some horrible DRM from Adobe. On my android tablet most of the images don't display properly unless you restart the app every page. The images are pretty central part of this book so this makes reading very difficult.
Interestingly the HPE press were extremely unhelpful and first suggested I downgrade the app version which isn't possible and then that:
"We recommend you use your laptop to read your eBook."
I thought that HPE was a technology company about enabling solutions. Seems I was misktaken.