There are specific classes you can take to learn more about refrigeration and how refrigerators work at your local community college or YMCA / YWCA center.
Recco is a site to help learn more about industrial refrigeration. This site contains information and advice about the refrigeration and can be found at http://www.reccousa.com/.
There are sometimes different programs or sequences designed for students who want to learn either domestic or commercial refrigerator repair. Either way, you'll end up taking an electrics and electronics class, refrigeration theory, system control technology, and refrigerant certification. Optional classes could include management, parts, and supplementary HVAC courses.
You should take sketching classes or drawing classes if you would like to learn how to draw.
ESL classes are classes for people who want to learn a second language. Many of the people in ESL classes have English as their secondary language so they are taking it to learn more about it.
Dixon Training at http://www.dixontraining.co.uk/ offers a course in refrigeration repair. Fred's appliance academy at http://www.fredsappliance.com also offers courses on appliance repair.
There is a great HVAC and Refrigeration Training School in Phoenix. Here is their website: http://www.refrigerationschool.com/. They have a great staff and have hands on training. Check out their website to learn more about having a career in refrigeration.
You learn to take blood. You learn how to deal with patients and use an IV.
One can learn about day trading classes at Pioneer Pacific. Pioneer Pacific is a college and if one visits there, the person can inquire about the day trading classes.
Go to classes
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There are classes to learn about childbirth education in Thailand. But you would have to do some searching because it is very hard to find anything about it.