What are some good and cheap Kindle books to download?

II have at least 400 books on my kindle, and about 99% I downloaded for free on Amazon. Here's a link to their free book collection:

http://www.amazon.co.uk/b/ref=amb_link_157681107_41?ie=UTF8&node=434020031&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_s=left-2&pf_rd_r=1HP3YEXSY1X16V88WSZK&pf_rd_t=101&pf_rd_p=456277507&pf_rd_i=341689031

by Bryony Harrison

Thank you for posting this question as I am very much a newcomer to kindle and reading books on a tablet. Can't wait!

by Amelia

If you go on amazon, there is a list of best sellers with 100 top ebooks paid and free. Sometimes, ebooks are free for a period. They're displayed as 100% discount.

by annep

Unfortunately I don't have a kindle, so I have not yet explored books online.

by Ivana Katz

Some tablets let you also read via kindle such as my Acer Iconia W5.

I am to be biased - mine. Just kidding...
Any short eBook is good, although surprisingly longer books sell more copies. It depends.

by Justine Crowley