This soils video by NCRS featuring Lance Brewington gives a great introduction to soils and soil assessment in an easy to understand way. Lance does a great job presenting the information, good visuals accompanying the information.
Learn about soil structure, soil texturing, soil horizons and common terminology used in soil assessment.
Worth watching for the epic intro music alone.
Nuggets like this added humor to it too.
"The larger particles are rock...of course you're not going to pick up a rock and say oooo I'm going to texture this. Its a rock. - Lance