David Cole
Books by David Cole
The Election Calculation
The Case of the Missing Turtle
Emily and Sam (Book 1)
An Unsolved Proof
The Math Kids (Book 9)
An Artificial Test
The Math Kids (Book 8)
A Knotty Problem
The Math Kids (Book 7)
The Triangle Secret
The Math Kids (Book 6)
An Incorrect Solution
The Math Kids (Book 5)
An Encrypted Clue
The Math Kids (Book 4)
An Unusual Pattern
The Math Kids (Book 3)
A Sequence of Events
The Math Kids (Book 2)
The Prime-Time Burglars
The Math Kids (Book 1)
Sir Edwin Lutyens
The Arts & Crafts Houses
NOLS Soft Paths
Enjoying the Wilderness Without Harming It