Your range of functions are somewhat mutually exclusive. A Windows 10 tablet will be great for drawing, but not ideal for reading books in the same way a small 8" tablet would. You could consider a Samsung Android tablet. I think the S3 comes with stylus. I have an old 10 inch Samsung Note and it's been by far the best stylus-enabled device in terms of ease of use, so the later models are probably awesome. Software is a little lacking versus PC, but then also a lot cheaper.
If your serious about your art, a Windows tablet is probably a must. But if just for fun and sketching, I'd suggest Android. There's a few options here that sound great quality and great value.
http://www.faceofit.com/reviews/5-best-tablets-with-stylus-for-notes-and-drawing-in-windows-android/
If your serious about your art, a Windows tablet is probably a must. But if just for fun and sketching, I'd suggest Android. There's a few options here that sound great quality and great value.
http://www.faceofit.com/reviews/5-best-tablets-with-stylus-for-notes-and-drawing-in-windows-android/