(NBC News Channel) -- Amazon is continuing to break holiday sales records.
Cyber Monday proved to be Amazon's best ever single day.
According to Adobe Analytics, Amazon's online transactions totaled $7.9 billion.
That's in addition to the more than $6 billion spent on Black Friday, and nearly $4 billion in spending on Thanksgiving Day.
Christmas lights and the new Echo Dot were among the best selling items.
Also topping sales, Michelle Obama's new book, "Becoming."
Adobe also reports that mobile phone shopping on Cyber Monday was up more than 55% from last year, with total sales reaching $2.2 billion.