Quick Question!

[Rikard Lorén]

Hello ! I'm new here and is interested into investing and was wondering about Ken McElroy's statement in his book when he says:

"The two richest real estate tycoons on the list are donald Bren and Samuel Zell. Both of these men are primarily known for their multifamily real estate investments and are proof that the best real estate investment around is apartment buildings"

SOOO: First he says/claims that MULTIFAMILY REAL ESTATE investments is the best ( says that the 2 richest guys got it ) and then that APARTMENT BUILDINGS is, I'm just getting confused, I'm from sweden and have come up with "flerfamiljshus and flerbostadshus"...so the question:

Is Multifamily Real Estate/flerfamiljshus AND Apartment Buildings/flerbostadshus THE SAME THING OR NOT?

I just want it cleared out so I know what I should focus on... THX !