Thanks to Ray Fleming (ex Microsoft UK now out in Australia) for his post and Bilal Mughal's comment on Facebook that reminded me to tell you about free ebooks.
We have 9 free ebooks here available in PDF format. The bonus news is that the Microsoft Press team have now made them available free in two additional formats, DRM-free EPUB and MOBI.
This means you can read them more easily on a wide range of ereaders, notably Kindles and iPads - as well as the Nook, Sony Reader and Kobo eReader. Of course these files can also be read with ereading apps for the various devices on netbooks, laptops, and desktop PCs. The key difference between these formats and the previously-offered PDF and XPS files is that the text is “reflowable,” meaning that it recomposes depending on the width of the screen (or as you resize a Window).
Tip: Choose MOBI format for Kindles, and ePUB for most others
Thanks Ray!