I bought the kindle edition and the reading has been a nightmare. Two main reasons:1. Why do they keep referencing page numbers (i.e. see pag. 287). How the hell I am supposed to go to that page in my kindle!2. The mathematical symbology craps. Many formulas are wrong, symbols lost, exponents lost...I think Amazon relies too much in OCR software for the scanned documents and this software is definitively deficient with math symbols. In addition, if someone at Amazon would have read the kindle edition they would never have offered it to the public!