Jeff Szpirgla

Ink Of Nightmares

Pages Of Doom

Your Brain: Understanding Your Body's Control Center

Just A Minute: A Crazy Adventure In Time

You Just Can't Help It!: Your Guide To The Wild And Wacky World Of Human Behavior

Gross Universe: Your Guide To All Disgusting Things Under The Sun

They Did What ? ! : Your Guide To Weird And Wacky Things People Do

Gross Universe : Your Guide To All Disgusting Things Under The Sun

Blood On Black Wax

Planet Wax

100% Dégoûtant ! - Guide De Toutes Les Choses Répugnantes De Ce Monde

100% Terrifiant ! - Guide Des Choses Effrayantes, Horrifiantes Et Qui Donnent Froid Dans Le Dos La Nuit

Something's Fishy

Book Of Screams

Super Switch