Does evidence of transitional forms exist ? (Hominid and other)

Hi. I've been reserching evolution recently (because of a school assignment, partialy, but also because I'm curious about the evidence that either side has for or against it). I've been reading a book that had a chapter on the fossil record, and it made a point that I don't believe has been discussed here. Maybe that's because no one's thought about it. Maybe it's because I'm an idiot for believing what some moron wrote in a book. But this is basicaly the argument:"If evolution realy did occur from small, micro evolutionary changes over millions of years, then we should have at least thousands of fossils showing each and every micro evolutionary step. pointing to a small handfull of "transitional" fossils wouldn't be enough."I'm curious to know how valid this argument is.

thanks for your help.
And to answer your question, I lost the book a long time ago, so I only remember the key points. Nothing else.