My copy of the E-book is 220 pages, but everywhere i look it says 359 pages. when i bought it, the download said 359 pages.
is this common when a book goes from hardcover to E-book?
Could be the way you are reading it. I know while reading Infinity Blade: Awakening on my iPhone, if you switched from portrait to landscape it added more pages. (422 to 500) It also depends on how large or small your text is.
the format i used was PDF and it had like 220 pages, now im using the EPUB format for ibooks. and its saying like 600 pages. this is frustrating.
With e-books, the amount of pages of a book changes based on the size of the font that you are reading on due to the number of words on the page. For example, if you are reading an e-book on a iPhone, then there is obviously going to be a lot more pages than the same book on an iPad since the iPad’s screen is significantly bigger and can fit more words.