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Continue to ChatTHE INVISIBLE TOOLBOX, the book! Available April 2020 https://theinvisibletoolbox.org/the-invisible-toolbox-the-book-available-april-2020/
THE INVISIBLE TOOLBOX, the book! Available April 2020 https://theinvisibletoolbox.org/the-invisible-toolbox-the-book-available-april-2020/