I live in Iran and the administrative hurdles the op was mentioned are not an issue here because you just can't even buy intwrnationally to begin with so there is no hurdle you might need to circumvent. The few English books I have are largely illegal reprints of a pirated version or some old ancient printed version that have somehow gotten imported (no clue how or is there an actual legal way)
I remember opening "thinking fast and slow" and noticing the weird paging. After checking the official version's page count and seeing how the version in my hand doesn't match, my best guess was that someone had printed a pirated epub version.