How can I effectively stain a desk to achieve a professional finish?

To effectively stain a desk for a professional finish, start by sanding the desk to remove any imperfections. Apply a wood conditioner to help the stain absorb evenly. Choose a high-quality wood stain and apply it in even strokes with a brush or cloth, following the wood grain. Allow the stain to dry completely before applying a clear coat of polyurethane for protection and a glossy finish. Sand lightly between coats for a smooth final result.