Esther Rutter’s books are:

This Golden Fleece: A Journey Through Britain’s Knitted History

All Before Me: A Search for Belonging in Wordsworth’s Lake District

And here is Esther’s list of book recommendations:

Knitting Book Recommendations

Shetland Wool Week annuals: https://www.shetlandwoolweek.com/annual/

Susan Crawford vintage knitting: https://susancrawfordvintage.com/collections/printed-books

Kate Davies: https://www.shopkdd.com/books

Felicity Ford: https://shop.knitsonik.com/

Elizabeth Zimmermann, available second-hand in UK via ABEbooks, EBay etc.