Apple Thoughts: Free iPad Starter Guide From Macworld

"As you may know, for the past few years we've been publishing a series of books, more or less bi-monthly. The Macworld Superguides are available as downloadable PDFs, on paper, and some of them even appear as iPhone apps."

Eventually Macworld will get these super guides out for the iPad via iBook, but until they do they are offering a free e-book called the "iPad Starter Guide" that you can download and put into iTunes and sync with your iPad.