Thats one of the books I have. She is so amazing.
Do you know how she makes 8 - 2 1/2 in triangle sqs? Cut out two 6 inch sqs, lay facing each other then draw an X from corner to corner. Sew 1/4 in from each side of lines. Dont cut drawn lines yet. Cut the sqs in half at the 3 in mark both ways. Looks like this + then cut on drawn lines.
You will have 8 half sqs that just need to be sliver cut to square up.
She has so many quik and easy ways to do perfect piecework.