"Describes 10 of the world's most dangerous machines in a countdown format"--Provided by publisher.

"Describes 10 of the world's most notorious crooks in a countdown format"--Provided by publisher.

"Describes 10 of the world's most dangerous jobs in a countdown format"--Provided by publisher.

Using a countdown format, describes 10 of the world's fastest animals.

Using a countdown format, describes 10 of the world's deadliest poisons.