These keys are present on the UK keyboard, but not the US: £¬
Compared to every other common ISO keyboard layout, ISO UK and ANSI are very similar. For non-programmers, ", @ and (nowadays) # are the ones that matter. For a programmer used to an ISO keyboard, the UK layout may well be a better choice than the US ANSI one. (US ISO would be a good choice, but the extra key seems to duplicate symbols already present on the layout).
These keys are present on the UK keyboard, but not the US: £¬
Compared to every other common ISO keyboard layout, ISO UK and ANSI are very similar. For non-programmers, ", @ and (nowadays) # are the ones that matter. For a programmer used to an ISO keyboard, the UK layout may well be a better choice than the US ANSI one. (US ISO would be a good choice, but the extra key seems to duplicate symbols already present on the layout).