Install Book Lens for Unity’s Dash

One feature that is helpful from Unity is the Dash. The Dash can help users to find information quickly, either locally (bookmarks, recent files, installed applications, etc) or remotely (Google Docs, Twitter, etc).

This quick search can be presented because the Dash has one or more Lenses. One Lens only gives one category of search result for the Dash. You can search the Lens category from the Dash home screen or through Lens’ page in the Dash. To go to the Lens’ page in Dash, you can click on the icon of the Lens Bar.

Because this post discusses Books Lens, so we'll just add a special Lens for the books category. For other Lens categories, you can find it yourself, see the previous paragraph.
How to Install Book Lens for Unity’s Dash, type the commands bellow in the Terminal:
For Ubuntu 11.04 (Natty):

sudo add-apt-repository ppa:davidc3/books-lens
sudo apt-get update
sudo apt-get install unity-lens-books

For Ubuntu 11.10 (Oneiric):

sudo apt-get install unity-lens-books

That’s all how to install Book Lens for Unity’s Dash. See the screenshots bellow and I hope you can understand what we talked about. Hope it useful :).