Screenshot captured from Sky TG24 on May 24, 2017 shows Pope Francis (R1) and visiting U.S. President Donald Trump.

by Laura Delsere

ROME, May 25 (Xinhua) -- Pope Francis has given U.S. President Donald Trump a book on environment and inequality as a gift when they met in the Vatican on Wednesday.

The two leaders spent about 27 minutes during the meeting. Analysts believe the atmosphere was better than expected since the original time-table of their meeting was set within 20 minutes.

At the end of the meeting, the Pope gave Trump a copy of his encyclical "Laudato Sì" which focused on issues of the world's environmental protection and growing inequalities.

Trump said he would read the book which the Pope gave to him as a gift. "It's a warning, I will read it," Trump was quoted as saying by local media.

In exchange, the U.S. president gave to the Pope the first-edition set of Martin Luther King Jr.'s works.