P/A for the masonry column on the front page should read 28k in lieu of 94.9k. Also, the slender wall example has 1345# calculated for the wall load, but states 1354# in the equation. It's inconsequential to the problem, but good to know.
Overall, I'm happy with Susan Frey's worked problems. She's a Mathcad fan I guess. Makes it a bit confusing at times because not every equation is linked in the logic.