Dads are as diverse as any group of people, and that's important to keep in mind when selecting a gift. Wandering through a department store looking at Father's Day gift displays, you'd think every dad in the world just wants a new tie, a 'Catch of the Day' picture frame and some golf ball-printed socks. When we were kids, choosing a Father's Day gift was as simple as adding to his collection of unused coffee mugs or dusty bottles of cheap cologne - but now, it's not that easy. Although 'it's the thought that counts' is still true when it comes to gift giving, by now you should know Dad well enough to pick out something he'll love!

Selecting the perfect gift for Father's Day is simple if you keep in mind who your father is, and what he enjoys. Don't pick something that is totally out of character, like a leather organizer for a Mr. Mom, or a fishing pole for a man who doesn't know bass from tuna. Does your dad enjoy sports, or is he really into cooking? Is he a fast-paced corporate executive, or a laid-back park ranger? This Father's Day gift guide will help you find the perfect gift for Dad based on his interests and personality.

Outdoorsman - Give your dad a soothing tropical oasis in his own backyard. After a long day of caring for the yard, golfing, hunting or fishing, he can kick back and enjoy the sense of relaxation that a yard-enhancing garden fountain can bring to any outdoor space. Garden fountains make great gifts for any dad who loves to spend time enjoying the yard he works so hard on.

If golfing is more to your dad's liking, the Caddy Picnic Backpack for 2 by Picnic Fun will enhance every game, ensuring that he always has a cold drink - and carries it in style. This insulated miniature version of a golf bag attaches to most regulation golf carts and comes with everything he'll need for wine and cheese service for two - ideal for any outdoor activity.

Sophisticated Businessman - For a dad who's always on the run, a high class cocktail set is the perfect gift. He can enjoy it with business associates, at parties, or to de-stress after a taxing day at work. The Manhattan Cocktail Set by Picnic Fun is an insulated cocktail party to go, made of handsome leatherette with a velvet interior. It provides plenty of room for two bottles of your father's favorite spirits, along with stainless steel bar tools and two martini glasses.

Businessmen always need to know what time it is, and the Classic Field Watch by LL Bean provides accuracy, durability and style. This best-selling watch features a classic design, top-grade materials, water-resistant and scratch-proof stainless steel case, and premium leather band.

Intellectual - Any dad who enjoys taking some quiet time alone will love the tranquility that a tabletop fountain can bring to his desk, library or bedside table. The Rock Garden Tabletop Fountain by Kinetic Fountains features a Zen-inspired design, with a grouping of illuminated river rocks that sit serenely in the bubbling water. Dad can just plug it in, fill it with water, and enjoy the soothing water sounds.

Readers, writers, professors and other dads in academic fields will be thrilled to have the definitions of thousands of words at their fingertips - without carrying a heavy book around, and flipping through pages to find the right word. The Franklin Talking Electric Dictionary contains over 200,000 words and combines high quality language reference with state-of-the-art search technology. The press of a button lets you hear any word properly pronounced, for more effective communication. It's available at the Discovery Channel store and other major electronics retailers.

High Tech Dad - When it comes to technology lovers, any old chair just won't do. They've got to have the latest, most exciting gadgets - and the Radio Cooler Chair by Picnic Fun is definitely in the upper echelon of cool portable seating. Leave regular folding chairs to the technologically challenged, and let Dad take this fun chair everywhere he goes. The cooler section holds up to 24 cans of Dad's favorite beverage, and the AM/FM radio includes an input jack for his iPod or portable CD/mp3 player.

If your dad doesn't already have an iPod to use with the Radio Cooler Chair, he's missing out! The ultra-small iPod Nano 4GB mp3 player stores up to 1,000 songs or 25,000 digital photos, and weighs only 1.5 ounces for ultimate portability. It also includes a calendar, appointment book, address book, alarm clock, games, and iTunes for Mac and PC, so he can start downloading songs and build up his collection right away. Get it at any major electronics store.

Master Chef - Make your dad feel like the king of every cookout with the BBQ Apron Tote by Picnic Fun, a unique and practical shoulder tote that's perfect for picnics, family gatherings, and holidays spent outdoors. The tote unfolds to become an apron, and is filled with a deluxe BBQ set that includes a spatula, tongs, fork, chef hat and BBQ mitt.

No well-stocked cooking enthusiast's kitchen is complete without a high quality set of knives. Wustof is known as one of the most trusted names in cutlery, and the Wustof Gourmet 6-Piece Knife Set includes all the essentials with long-lasting blades that are precision tapered, maintain their shape and edge over time, and are comfortable to hold. Available at department stores or specialty stores such as Crate & Barrel.