Spaces? Yes/No/Other

I'm planning on learning Japanese. One of the main things that's been confusing me so far is the apparent lack of spaces between written words in Japanese (or most Asian language) sentences. How do they tell when one word ends and the next one begins? Or am I just missing something? AsfarasIcantelltheirsentencesalllooklikethis. Isthathowtheyactuallyare?

>>1
How do you tell the difference when you're talking?