5 ms·

Isn't that the same book as the one posted by OP, but an older version? Also, latest version seems to have some ugly boxes around text. Latest version that see

• hiddencost 11y ago
  Yes, that's what I said. The parent was confused because previously he saw this book posted at the link I provided, and hadn't made the connection that the OP's link is the same. Edit: when I said "this book" I was referring to the book linked to by the URL from the OP.