My quilting instructor of the first quilting class I ever took in 2006 and that got me hooked on quilting, recommended the book, "Machine Quilting Made Easy" by Maurine Noble, published by That Patchwork Place. The book is an excellent reference for its many charts showing which type of thread, weight of thread, type of needle, size of needle, etc. to be used together for best results. The book can be found on Amazon.com and you can "look inside" to see what the charts look like. I wouldn't be without this reference book.