Each image in each poster clues a word.  These words can be paired
up, one from each poster in each pair, such that the two words 
differ by one letter.  In one poster, these letters are the letters
A through I, while in the other, they are different.  The pairs,
ordered by the letter from the A-I poster, are:

square	squire	A->I
subset	sunset	B->N
chip	ship	C->S
pedal	petal	D->T
bender 	binder	E->I
funnel	tunnel	F->T
magi	maui	G->U
fish	fist    H->T
bell	bell	I->E

Reading the letters down the last column spells the answer, INSTITUTE.