We hope you enjoy The Official Ubuntu Book. There are many changes we made for this edition, which we believe takes an already good book to a new level.

Because Ubuntu has risen in popularity and is better known, we have expanded the intended audience from pure beginners to also include those who know a bit about Ubuntu but who want to improve their skills and become power users. These are not necessarily focused on becoming programmers or systems administrators, but regular people who want to make their day-to-day use of Ubuntu more efficient or who want to better harness Ubuntu’s potential.

In 2011, Ubuntu received the first wide release of the new Unity interface. This has been refined to become more elegant, more powerful, and more ...

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