Not sure why I didn't discover this book earlier in life. I stumbled upon it very unintentionally.
While "browsing" some courses in the MIT opencourseware catalog and discovered a course called "how to learn almost anything" (why didn't they offer courses like that when I went to university?). On the reading list for the course was stuff by Holt, following the link eventually got me to the title, which I love "Instead of Education ...". So this is definitely on my reading list along with John Taylor Gatto's Dumbing Us Down.