Wikipedia vs. Text book

Overall, I prefer the textbook to wikipedia. Although Wikipedia has more information, sometimes that information is not relevant and sometimes it's not even correct. The book has the most important information, split into categories that are easy to follow. In wikiperdia, there is just so much that it is difficult to pick out the information that is necessary. In the book, there are specific headings that will allow you to be certain where to look. I would prefer using the book in class than Wikipedia. I just think it would make learning so much easier and quicker.