Bust Measure around the fullest past of your bust and shoulder blades, then drop arms to yours sides to measure
Waist Measure around where you wish the garment to sit. As your measurements will depend on your personal preference. For example you may wish to wear our skirts high-rise or low-rise 
Hips Measure around the fullest part of your hips
Sleeve Measure from the middle of the back of your neck, across your shoulder and down your arm to your wrist
Length All measurements are from the top of the shoulder (for tops and dresses) to the longest point of the item