Alphonso Dunn teaches primarily pen and ink techniques on his Youtube channel. Visit his channel at https://www.youtube.com/user/LighterNoteProd

Text review:
http://www.parkablogs.com/content/book-review-pen-and-ink-drawing-simple-guide

Find me also on
Youtube: https://www.youtube.com/user/teohyc
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Twitter: https://twitter.com/ParkaBlogs
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Patreon: https://www.patreon.com/parkablogs