Brewers Publications has a new beer book slated for release, Session Beers: Brewing for Flavor and Balance delves into the past, present and future of low ABV beers.
The book is by Jennifer Talley who has a brewing resume that includes Squatters Pub Brewery, Redhook Brewery, Russian River Brewing and Auburn Alehouse. That first citation is a Utah brewery where which means that Talley has had to work under ABV restrictions which is perfect training for writing a book on sessions beers.
If you want to dive into the recipes, development, ingredients and brewing process for the low ABV, then this book will have the information you need