For me, it really was the first time math had clicked. I had a non-proof based linear algebra course before going through the book, but it made very little sens

For me, it really was the first time math had clicked. I had a non-proof based linear algebra course before going through the book, but it made very little sense to me. After doing LADR, I understood the subject intimately, lost my math anxiety, and performed better in every class I took afterwards than I would have otherwise.