Amazon UK's New Year Day's Kindle Big Deal is George R R Martin's A Song of Ice and Fire. Or at least, as the books in the series written so far.
Oddly, book 3 and book 5 are divided into two parts, presumably as equivalents of newly published paper editions.
https://www.amazon.co.uk/b/?_encodin...ode=4725112031
£0.99 each.