I have a bit of early geometry (polyhedra and formulas from high school) in Chapter 6 of my book, see preview here https://minireference.com/static/excerpts/noB

I have a bit of early geometry (polyhedra and formulas from high school) in Chapter 6 of my book, see preview here https://minireference.com/static/excerpts/noBSmath_v5_preview.pdf#page=37 https://minireference.com/static/excerpts/noBSmath_v5_previe... It's pretty basic though... you might need another book for more details, especially if you want to do geometry proofs. If you want to broader review of undergraduate math and physics, then check out the longer book: https://minireference.com/static/excerpts/noBSmathphys_v5_preview.pdf https://minireference.com/static/excerpts/noBSmathphys_v5_pr... Both books have hundreds of exercises, which, as other have pointed out, are the most important part of any learning resource. Several readers have said they appreciate how complete the curriculum presented in these books are (based on years of experience helping people review math needed for university-level courses).