I haven't read this book, but I hope it addresses the 5% of us that have great difficulty recognizing icons, and the 1% of us (like me) that have no visual recall ability whatsoever.

I hate products that require me to hover for a few seconds before the tooltip comes up. I like products that put a text label next to each icon all the time (even if I have to enable that). I really hate products that have no tooltips at all, and then give me no way to disable the totally useless (to me) toolbar.

I think I've talked about this before here, but maybe it was slashdot instead. I'd be happy to answer further questions about my particular kind of dementia. {grin}

-- Randal L. Schwartz, Perl hacker