Leveling Concrete Floor for Ceramic Tile Install

I live in a older house that has a bumpy and unlevel concrete kitchen floor. I would like to install ceramic tile on this floor but don't know what I can do to level the floor. Any suggetions?

Self Leveller is probably the most effective way to flatten the floor.

Will the ceramic tiles adhere to the leveler? Is there a specific leveler I should use?

Self levellers are products born out of necessity to plane floor surfaces for tile installations. Tiles will certainly adhere to self levellers.

There are many self levellers available. Most readily available is "Level Quick" from Home Depot. Don't forget to use the primer first.