Or look at Wiltons' Year books bought at any craft store and some books stores....I believe you can also find "Wilton" on line. Toward the middle of their books they show their tips and what border/look the tip creates.
Each year book varies abit and some have more details on tips then others, but you'll find the info. very helpful.
"Bakers are born, not made. We are exacting people who delight in submitting ourselves to rules and formulas if it means achieving repeatable perfection", Rose Levy Beranbaum