Hi from So. Cal. I have a blast with Meka puzzles

There was a guide featured at the Facebook page, I think. Just know the basics, like motors turn, draggables move, be sure to always attach the Draggables to something (like a motor or a slider), as free ones can be unpredictable, etc.
Welcome to the forums! You can try some levels first before you create some. But note that a lot of levels here use "tricks", exploits and bugs that you may not be familiar with. The exploits are really fun and cool, though, and I'd rather than Martin never fix them. They open up a new world of possibilities in creating levels.

 

There is both a whole forum for level building help on this site as well as this page on another site. As Frenzies has mentioned, we're more advanced here so best if you start off with the second link first. Welcome to the biggest and best forum for Mekorama!

 

If you want to learn some basis, there is a tutorial album (for children but it's fine ) from @S. Nagy I have found useful.
Otherwise for some tricky stuff, you can try the 3 tutorials levels from @trids.
Welcome here!