Laurence Packer is a leading expert on wild bees and the author of Bees of the World: A Guide to Every Family (Princeton) and Keeping the Bees: Why All Bees Are at Risk and What We Can Do to Save Them. He is Distinguished Research Professor Emeritus of Melittology at York University in Toronto. Ann Sanderson is a science illustrator whose books include A Garden for the Rusty-Patched Bumblebee.