Why I had to write this book
Is ecstasy more dangerous than horse riding?
How can we measure the harms done by drugs?
Why do people take drugs?
Cannabis, and why did Queen Victoria take it?
If alcohol were discovered today, would it be legal?
"Meow, meow" - should mephedrone have been banned?
What is addiction? Is there an "addictive personality?"
Can addiction be cured?
Cocaine - from chewing to crack
Why was smoking banned in public places?
Prescription drugs
Can drugs improve performance?
Psychedelics - should scientists try LSD?
The War on Drugs, and drugs in war
The future of drugs
What should I tell my kids about drugs?