It's that time of year when exams are over and so is school – not just for summer, but for life! Whether you're dressing for a grad ball or a prom, you'll want a look to create great memories and leave a lasting impression. That's why we've created our guide to picking the perfect, little, black, prom dress. The classic prom dress A time-honored design, this style is fitted at the top and flared from the waist. Polite, but flirtily showing a little calf – this style is ideal for those wanting to disguise their hip area while still displaying their pins. The bandeau prom dress or strapless prom dress A strapless prom dress is great for showing off toned arms, but make sure you wear a supportive and reliable bra to prevent any dance floor related embarrassment once the party is in full swing! Flashing a little shoulder can be the perfect antidote to the expanses of material in a full-length gown – as Ms.Jolie shows us. The long, full-length prom dress or maxi prom dress Nothing screams Hollywood glamour like a long gown. Satin, chiffon or anything else Grace Kelly-esque, if you choose a fabric that suits your shape, (you don't want it clinging in the wrong places!), a maxi prom dress can help to lengthen your frame – be sure to pair it with heels so you don't drown your frame. The short prom dress Strut your stuff and show off your stems! Remember that shorter doesn't have to be slutty; there are plenty of leg-loving skirts and flirty hemlines available, which won't get you arrested for indecent exposure. This halterneck dress below is great example. By Karen Millen it is the perfect amalgamation of classic tailoring and modern styling.  The combination of a graphic devoré tribal patterned skirt with a fitted bustier and sweetheart neckline creates a perfect blend of old and new.