BOTH OF AMAZON.COM AND AMAZON.CO.UK offer these ebooks free for download at a limited period. Hurry up, check it out and you can still be able to read them thru your computers using Whispersync - reader for Amazon ebooks.
Note: If the links of these ebooks are directed to Amazon.co.uk, you can also search the titles using Amazon.com. These options allow you to download these ebooks depending in your location and for some they vary on the kindle registration. For example, my kindle is still registered in the US, so I use the Amazon.com to transfer these freebies, eventhough that I currently live in the UK.