Knock Three Times: 28 modern folk tales for a world in trouble: 3 (There was a knock at the door)

Knocked Sideways: Discover the extraordinary power of hope

THE KNOCK: when love crosses boundaries and the truth refuses to stay hidden

Sporting Tales: 21 new stories for a troubled world: 5 (There Was a Knock at the Door)

Of Politics & Economics: The School of Hard Knocks and Gentle Persuasion (The Pursuit of Justice Series)

The Slate Range Charcoal Grey Slate Slate Hanging Door Sign "Bell Out Of Order Please Knock"

The Slate Range Slate Hanging Door Sign "Shhhh Sleeping Baby Please Do Not Knock Or Ring "

The Slate Range Charcoal Grey Slate Slate Hanging Sign - "Home Office Please Do Not Ring The Doorbell Or Knock"

The Slate Range Charcoal Grey Slate 'Baby Sleeping Please Don't Knock Or Ring The Doorbell' Slate Hanging Sign

The Lord Of The Tools 2Pcs No Soliciting Not Ring Bell No Knock Sign 30X20x0.15cm Pvc Caution Sign With Pre-Drilled Mounting Holes For Home Or Business

The Slate Range Charcoal Grey Slate Portrait Slate Hanging Sign - "Please Do Not Knock Or Ring The Doorbell, Dog Will Bark Baby Will Wake Sh*T Will Happen"

The Rusty Apples Metal Sign Co Coconut Knock Em Down - Fairground - Village Fete - Metal Sign 12” X 8” (Inches) 300 X 200 (Mm)

The Rusty Apples Metal Sign Co Coconut Knock Em Down - Fairground - Village Fete - Metal Sign - 3 Sizes To Choose (8” X 6” 200 X 150 Mm)

The Rusty Apples Metal Sign Co Knock Em Down Vintage Style Fairground Circus – Vintage - Style Metal Sign – 3 Sizes To Choose – Home Decor – Unique Gift (8” X 6” 200 X 150 Mm)

Delonghi Dlsc059 Coffee Knock Box - Silver, Silver/Grey

The Big Bang Theory Sheldon Knock Knock Penny Sweatshirt Navy XL

Knock Knock Penny Sheldon Sweatshirt - Black - M - The Big Bang Theory

Knock Knock Penny Sheldon Sweatshirt - White - XL - The Big Bang Theory

The Big Bang Theory Sheldon Knock Knock Penny Sweatshirt White XXL

The Big Bang Theory Sheldon Knock Knock Penny Sweatshirt Grey XXXL