Block rewards vs Transaction fees

Hi guys,

I'm struggling to understand what's the difference between block rewards and transaction fees. I'm still talking about Eth 1.0 so PoW. I got the process of trying to guess the "solution" right by inputing computational power to validate the transactions, bundle them into a block and being awarded with the block reward.

But what's the difference between the block reward and the transaction fees? Does the block validator earn the block reward + the sum of the transaction fees related to that specific block?

Thanks