Olga is the best teacher u can find her classes are 65 dollars or 75 depending on wat type of class she teaches so well she teached me how to make my first skirt and i made it in 2 classes each class is 3 hours long exept saturdays she gives u an hour more for free u have to pay the first time 40 dollars extra for the registration 20 and the ruler she designed and got patented 20 more but only the first time its 4 classes a month you can take 2 or 1 class a week its awesome she has been a fashion designer and sewing teacher for more than 50 or 60 years thats alot of experience she os the best!!!!!!!!!!