Can you learn Chinese from a textbook. Here John and Jared break down if they think you can learn solely from a textbook.https://youcanlearnchinese.mandarincompanion.com/episodes/27-can-you-learn-chinese-from-a-textbookAn earlier episode of You Can Learn Chinese where they talk on the four keys to learning a languagehttps://youcanlearnchinese.mandarincompanion.com/episodes/13-the-four-keys-to-learning-chinese-you-need-to-know The original journal entry on the four strands by Paul Nationhttps://www.tandfonline.com/doi/abs/10.2167/illt039.0?journalCode=rill20 The Mandarin Blueprint sitehttps://www.mandarinblueprint.com/resources/pronunciation-mastery/The reddit announcement I originally readhttps://www.reddit.com/r/ChineseLanguage/comments/azphoq/it_only_took_3_years_the_mandarin_blueprint/And the Mandarin Blueprint YouTube channel https://www.youtube.com/channel/UCc5ueW8aqO73Q6MevB8L5PA/videosFinally the original promo video I saw. Check out Luke's Mandarin at https://www.youtube.com/watch?v=RTRGOwgHyW0