How to reset to single page mode

OMG all of the sudden. I get 2 pages on my screen at once and the text seems to make fun of me as I try to move the text into the proper order. My guess is I accidentally entered multi page mode, thanks

At the bottom right of the window, left of the zoom cursor, there are 3 small icons with papersheet shape: single page, double page and book view. Click on the leftmost one, you’re back in single page mode.

To show the community your question has been answered, click the ✓ next to the correct answer, and “upvote” by clicking on the ^ arrow of any helpful answers. These are the mechanisms for communicating the quality of the Q&A on this site. Thanks!

PS: OMG???

thanks, guys, you rock

Thisis not an answer (though much appreciated). Please, make it a comment under the answer and check the relevant answer. Thanks.