For reference, Quilting The basics & beyond by Jeri Simon(lots of photos in it)( in case I forget something). For longarming I like Angela Walters books. I also like the Eleanor Burns books and the Eileen Wright Bargello books(my newest book). I have a reference library of quilt books(my go to ones) and then I have the ones for projects quick jelly roll quilts or regular ones. I love them all as they each have their purpose.