This book will be available in about a week. Might be a good gift if he's willing to try Pomona Pectin:
https://www.amazon.com/Preserving-Pomonas-Pectin-Updated-Revolutionary/dp/159233993X/ref=sr_1_1?crid=1IO7D2XWFFMMM&dchild=1&keywords=pomona+pectin+book&qid=1630906001&sprefix=pemona+p%2Caps%2C207&sr=8-1