Direct and Indirect objects in Spanish can be a bit complicated, but we need to learn them as they are used a lot. So these videos should help you.
Direct Objects: From Barcelona
httpv://www.youtube.com/watch?v=NrMR6gH8fGc
masculine: lo, los
feminine: la, las
Indirect Objects: Barcelona Cathedral
httpv://www.youtube.com/watch?v=xGsv9RxOeVM
to me: me
to you: te
to them: le
to us: nos
to them: les