If the piece of wood has any splinters or other rough patches, sand them down with medium-grit sandpaper. Then wipe the wood down with a tack cloth to remove any sawdust. If you don't have a tack cloth, a damp cloth or paper towel will work as well. Mod podge is a thick glue, sealer, and finisher that's very popular for arts and crafts projects like this. To mod podge paper to wood, you have a choice between a gloss or matte formula. Both are effective, but the only difference is that a gloss finish will give a shine to your finished product. If you don't want that, choose a matte formula. Both mod podge types are available at crafts stores or online. After applying the mod podge, take the paper and line it up with the wood. Then press it down in the position you want it on the wood. From there, run your palm across the paper to press it against the wood and work out air bubbles. Leave the project in a safe place where it won't get knocked over. After 15 minutes, you can move the project to a new area or apply a layer of finish. Leave the piece flat so the paper doesn't slip. If you'd like, apply more mod podge over the paper for a shiny finish. Dip the brush back into the mod podge and paint a thin, clear layer on the paper. Wait 15 minutes and apply a second coat. Once the mod podge dries, the project is complete.

Summary:
Sand any rough patches on the wood. Choose between a gloss or matte mod podge formula. Press the paper down against the wood. Let the mod podge dry for 15 minutes. Apply 2 thin coats of mod podge over the paper if you want an extra shine.