Kobo only:

Brainwaves

Sale Dates: Dec 22-Jan 5

https://www.kobo.com/au/en/p/holiday2017

Sale Dates: Dec 22-Jan 2

Links:

CA: https://www.kobo.com/ca/en/p/boxing17ca

US: https://www.kobo.com/ca/en/p/holiday2017

UK: https://www.kobo.com/gb/en/p/christmas2017UK

Bundles sales

Final sale and then will be archived:

Until Dec.29 First Glimpse of Secondary Worlds

Until Dec.29 Sci-fi July Fever Fun (archived in January)

More sales:

On sale until Dec.29 Vampires Through the Centuries

On sale until 1st Jan 2018 Mythic Tales

Coming soon:

new bundle Remembering Warriors.