I was drawn to Odoo because of integration with invoicing, accounts, simple stock control & of course free for one user.

Have no experience with website building/ ecommerce.  Is it possible for a novice to use Odoo for the above?

For example: I think the starting point for a website is a template. I cannot find these at all. Have only found two free themes.

I confess i do not fully understand the difference between template & theme!

Any pointers would be much appreciated.