There are a few things you can do to create a drop shadow in Adobe Illustrator. The first is to choose the Shadow Type option in the Tools palette. This will give you a list of options, including Drop Shadow, Bevel Shadow, and Gradient Shadow. The Drop Shadow option is the most common and easiest to use. It allows you to create a shadow that is gradual or sudden. To create a drop shadow, select the drop shadow tool from the Tools palette and then click on the desired part of your document where you want the shadow to start. You can also drag and drop theshadow onto an object in your document to create a dropped shadow. The Bevel Shadow option is more complex but can be used effectively when creating shadows that are not just gradual or sudden but have several degrees of darkness or lightness. To use bevel shadows, select the bevelshadow tool from the Tools palette and then click on one of your desired parts of your document where you want theshadow to start. You can also drag and drop theshadow onto an object in your document to create a beveledShadow. The Gradient Shadow option is another effective way to create shadows that are not just gradual or sudden but have several degrees of darkness or lightness with different colors or shades of gray. To use gradient shadows, select the gradientshadow tool from the Tools palette and then click on one of your desired parts of your document where you wanttheshadowto start. You can also drag and droptheshadow onto an object in your document to create gradientsof lightness or darkness across entire pages or even individual objects!