e-books, 127, 259–260
saving, 21
synchronizing, 166–167
early adopters, 250
ease and usability vs. features, 257–258
efficiency, 105–106
information accessibility for, 109–110
reinventing the wheel, 106–109
electronic music synthesizers, 42
ellipses (...) on menus, 122, 152
embedding browsers, 156–158
Emotional Design, 324
end users, OOP for, 239–241
Enter key in dialog boxes, 27
environment variables, 225
Esc key
in dialog boxes, 27
in drag and drop systems, 128
European Union Usability Net website, 324
exception handling, 199–200, 200
in C++
for constructors and destructors, 203–205
in function headers, 205–207
cleaning up resources, 200–203
excise tasks, 112
exiting programs, 19, 198
extensions, hiding, 16–17, 17
Extra Large Fonts setting, 89