Answer: Here's a website with photos and sketches of raised beds:
Once you've read the information you'll have a better idea of how to construct raised beds and what materials to use. It isn't necessary to put weed barrier down, nor is it necessary to use wood - you can simply mound up the soil, tapering it at the edges. If you're purchasing soil to fill the beds, order a 3-way mix. It will have compost, sand and garden soil which is a perfect growing media for raised beds.
Best wishes with your project!
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