This emerald-green pigment was used in Victorian-era wallpaper, garments and—as Winterthur found out—in cloth book covers.

Kouri Richins, the Utah mother of three who penned a children's book about grief after allegedly killing her husband, previously tried to poison him before his death on Valentine's Day ...

But sceptics, like the South African writer and author of a book on poison, Imraan Coovadia, have wondered whether the Russians are “telling these politicians what they want to hear about their ...