eBook suggestions (and free eBook!)

Hello!

Have you read any chess eBooks? I'm currently writing one about checkmate patterns, aimed at hobby players, and I'd really appreciate any advice about style/design, as I know these are really important for chess ebooks - I want it to look great, so it's possible to really read it without a board (or magnifying glass...).

I've put together a sampler book of 21 fun checkmates which is now available on Amazon for 99c/£0.75 (http://amzn.to/Qnfeh8 for .uk and http://amzn.to/UNy6BH for .com), but I'll be making it available for free for 24 hours on Monday 26th November. I'd be very thankful to anyone that downloads it and can help the next book be as good as possible!

The project is currently on Kickstarter, if you're interested:

http://bit.ly/chessebook

Here is a position from the book:

Thanks a lot for your help!

Oliver