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Mark Wiersma
I am Dutch, 62 years, live most of the time in Sweden and Spain and I have been involved with online content development and publishing since 1989.
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Mark Wiersma
I am Dutch, 62 years, live most of the time in Sweden and Spain and I have been involved with online content development and publishing since 1989.
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Mark’s Substack
By Mark Wiersma
My personal Substack
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