Tech giant's shares rose in pre-market trading
Shares in the retail giant rose almost 2 per cent in pre-market trading.
According to Mr Bezos, Amazon Prime passed the 100 million customer mark last year, with the company shipping more than five billion items through Prime in 2017.
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The company also said membership of its Amazon Music Unlimited service more than double in the last six months.Meanwhile, 2017 was the first year since the company was established that more than half the items sold via Amazon came from third-party sellers.
Along with his letter reflecting on last year, Mr Bezos republished his first shareholder letter from 1997, in which he celebrated the company reaching a milestone of $148m (£104m) in sales. Last year, the company reported sales of $178bn.
“Our core values and approach remain unchanged. We continue to aspire to be Earth’s most customer-centric company, and we recognize this to be no small or easy challenge. We know there is much we can do better, and we find tremendous energy in the many challenges and opportunities that lie ahead,” Mr Bezos said.
His letter did not address recent reports of Amazon employees working in poor conditions.
Amazon workers in Spain went on strike on Tuesday in protest at their pay and working conditions.