The answer is yes but occasionally Mac users experience problems using ebooks:
When you access an ebook, you may find that you cannot scroll through pages or individual pages open in a new window rather than the reading frame. This can happen using either Firefox or Safari and is particularly common on University Macs. In this instance, it is best to download the PDF of the ebook.
Your own Mac
Safari is the best browser for using ebooks but you may need to run this fix to make it work.