[FredZarguna]

I got an "international" copy of Functional Analysis by Rudin for $10.00. US cost $165.00. The front and back covers were Chinese. Every word inside [and of course, all the mathematics] were in English.

[Maine Mariner]

Exactly my point!

I was paying my own way through graduate school in the early 1980’s and foreign students who were on free rides from their governments or companies would buy their international textbooks in Hong Kong or Singapore and pay 1/4 to 1/3 of what I had to pay. The internet has made those editions available to American students-thank goodness.