I bought "No Bullshit Guide to Linear Algebra" a number of years ago, and it was super useful for me to get closer to grokking the math behind it (as someone who flunked out of calc in school).
Ivan was also really helpful when I emailed him with some stupid questions -- way above and beyond.
I have read your No BS Guide to Math & Physics and No BS Guide to Linear Algebra — they are very high quality learning materials. Excited for the Stats book!
- https://minireference.com/static/excerpts/noBSstats_part1_pr... [223pp, 9MB]
- https://minireference.com/static/excerpts/noBSstats_part2_pr... [191pp, 16MB]
The concept maps from the book might also be useful to check out: https://minireference.com/static/conceptmaps/statistics_conc...