I love her workshops on writing and think she is a genius. If you can't go to Portland, hopefully that site helps you a lot. I know it has helped me.
If you look under "What Can I Help You Find?" (which is written in huge, bold letters, so you can't miss it) under "For Writers", there is one for writing workshops, which is the second one under that headline. So it is easy to find.
all you have to do, is click "show me".
Hopefully this helped.
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