On the old book of quotes I used the perspective mold to get the perspective I wanted quickly and then I deviated from the tutorial a bit. Over the page I drew a rectangle and sent behind the text. This rectangle needs to be longer than your text to give room above and below. I made this rectangle 99% transparent and grouped it with the text. I then went to the live effects > distortion> liquid colour with the draw selected and a large brush I gently pushed and pulled to get the text to conform to curves of the page.

The transparent rectangle gives you extra room to manipulate your group without the edges getting chopped off.

I like the sign on the wall idea I'll have a go at it later, when I have time to play!