Female led relationships discussion

Please excuse me; I realize this isn’t exactly the “proper” spot for a book search. I have already perused the library here and only found one candidate. Mistress C, who is my second Mistress as well as my teacher and trainer, has told me to find a book about being subservient or submissive, which she and I can use to guide us both on this journey. The closest match sounded like “Worship your Wife”. Does anyone know of other FLR or D/s training guides that are written more for the Sub? We already have a couple of FLR books (like “At her feet” and another very similar one), but they lean more toward master/slave dynamics than Dom/sub, and my Mistress finds it difficult to read through the harsher sections. Thank you for any help or recommendations! Gray Wolf, unworthy submissive to my Mistress’s