Biography, theology, history and fiction. 31 books focused on WW II and the truly modern era. https://www.amazon.com/C-S-Lewis-Inspired-Christopher-Gordon/dp/1622781376/ref=sr_1_1?crid=1KCFSD5HSELCJ&keywords=lewis+christopher+gordon&qid=1681451926&s=books&sprefix=lewis+christopher+gordon%2Cstripbooks%2C89&sr=1-1