Expert stylist and trichologist Linda Jackson and cosmetologist Kelly Wood share their expertise to explain what is cosmetology and what is needed to be a good hairdresser and barber. What do you need to learn? Passion towards doing hair would make a hairdresser successful. Cosmetology is a hard work, but it is a lucrative business, if you are gifted with your hands. You need to have passion towards your profession, patience, good personality and desire to learn. Expert advice for aspiring cosmetologists, barbers, beauty school students, salon professionals.