I learned needle turn applique from Pat Campbell, the Jacobean Queen of applique. If you can get her book, the illustrations are wonderful. Just remember that your needle must travel underneath the fabrics until you reach the next point you want to make a stitch. Come out on the top of the fabric and go right back down through the back fabric, putting the needle just under the edge of the piece to be stitched down. Use a tiny stitch to hold the fabric down. I use a # 12 needle to do the applique. Good luck!