Moving to a rented townhouse has some restrictions, namely 'no hooks'! Posters with a safe amount of blu-tack are fine though...

So many posters to choose from, so little wall space!

  

Fantastic typography poster from The Birds and the Beasts.

  

Brilliant thought from I Love Typography.

  

Super-cute bedtime poster from My Sweet Prints, and even better, they're Australian, and it's cheap!