The Kindle edition of this book is really lousy. I would suggest you don't buy it.
1) Graphics (as oposed to normal text) are mediocre at most. When math formulas are delivered as graphics, they are extremely pixelated to the point you can hardly read (e.g. in lim x->a, you can't read the x or the a). The color of the formula is a very light gray (not black) whith very low contrast. And the formulas are very large in comparison to the written text, which is annoying since 3 formulas can take the whole Kindle DX screen, and is very common to have text referring to a formula that is in the following page, when you have space in the same page). In summary, very large formulas which you can't read beacause of pixelation and lack of contrast. Function graphs are ok.
2) Each time a graphic appears, there is a huge space before and after it. These leaves pages that are have way too many blank spaces. It is a complete waste of the DX screen space. To follow a simple solution you may have to scroll easily through 3 pages.
3) Very poor editing. When formulas are texts (i.o. graphics as I mentioned in point 1), I found some mistakes.. e.g "x = 4 = 3" instead of "x = 4-3". While one can also find such mistakes in a print version, they are far less common. In the Kindle edition they become annoying.
4) The "boxes" with light gray of the print books are lost in the Kindle edition. The text of the box is there, but you don't immediately realize it is a box. So the flow of the text is difficult to follow.
I have four Easy Outine books in print and they are awesome. There are lots of info in a compact and clear layout. The spirit of the Easy Outlines is completely lost in the Kindle Edition. Would return it if I could.