How can I effectively decompose leaves in my garden?

To effectively decompose leaves in your garden, you can create a compost pile or bin specifically for leaves. Layer the leaves with other organic materials like grass clippings, kitchen scraps, and soil. Turn the pile regularly to aerate it and speed up decomposition. Keep the pile moist but not waterlogged, and in a few months, you'll have nutrient-rich compost to use in your garden.