I'm wondering if the legend of Figure 2.27 is accurate.
It says : Yahoo! Mail mistakenly shows a valid indicator instead of an invalid indicator....

Should not it be Yahoo! Mail mistakenly shows an invalid indicator instead of an valid indicator....

Seems to be different from the text of the paragraph that follows the figure.... which states the other way round (1 - invalid and 2- Valid).

Thanks for clearing this matter for me :-)

Note from the Author or Editor:
To clear this up let's change the text slightly.

Original text:
"Yahoo! Mail mistakenly shows a valid indicator instead of an invalid indicator for a message when it is dragged back over the inbox"

Corrected text:
"Yahoo! Mail displays an invalid indicator when first dragging over the inbox then mistakenly displays a valid indicator when the message is dragged back over the inbox"

Current text reads:
Google Mail uses an in-context tool to flag favorites

Change to this:
Google Mail uses Contextual tools to flag favorites

Current text:
Songza uses a multi-level in-context tool menu

Should read:
Songza uses a multi-level contextual tool menu

Reference to the figure does not seem to be the right one :-)

"the Netfix approach simply creates a bubble effect .... (Figure 5-7, right)"

Should be :

"the Netfix approach simply creates a bubble effect .... (Figure 5-8, center)"

Note from the Author or Editor:
This is a duplicate of the previous one I approved. However, I am on the fence as to whether the correction should say "(Figure 5-8)" or more specifically "(Figure 5-8, center)"

Reference to Figure 5.7 for Netflix shoud be Figure 5.8

Note from the Author or Editor:
Current text
(Figure 5-7, right)

New text
(Figure 5-8)

Current text:
In the original version of My Yahoo!, clicking...

Should read:
In an earlier version of My Yahoo!, clicking...

Current title for second step:
"Secondary page"

Should read
"Final page"

37Signals' Backpack product is referred to as "Backpackit" throughout the book.

Pages: 30, 31, 32, 62, 63, 64, , 65, 107, 108, 109, 206, 216, 221, 249, 250, 253, 264, 265, index.

Note from the Author or Editor:
The confusion is the site is actually "backpackit.com" while the product name is "Backpack"

"We mentioned Jakob Nielson's Error Prevention...."

Should be

"We mentioned Jakob Nielsen's Error Prevention...."

Doalog Overlays, 109 should be collapsed together with "Dialog Overlays, 107". Resulting in:

Dialog Overlays, 107, 109