This is a great reference for limbs, and is more comprehensive than most couple reference books. However, the art styles didn't really connect with me. I was hoping that the hands would be more beautifully drawn, like Tatana Kana or a similar artist would draw, but the fingers indeed matched up to the "yaoi hands" name. But other than that, I think that the multiple poses are excellent references for artists struggling with how couples intertwine and naturally pose their hands and legs. Just beware oft the anatomical accuracy, and concurrently practice drawing the real stuff :)