Creepy crawlies are some of the smallest creatures on Earth – but they make a big impact on our daily lives. From bees to worms, our world would be a different place if bugs weren't around to help us out.

If you want to find out more, cut out this coupon and go along to your nearest participating retailer today to pick up our latest children's encyclopedia – Disney's The Wonderful World Of Knowledge: Insects and Spiders – for just £2.99.

Here are some of the amazing facts you'll find inside:

● The biggest swarm of locusts ever seen in Africa contained an incredible 75 billion insects.

● The swarm covered an area of about 1,300 sq km (500 sq miles).

● The atlas moth is one of the largest moths in the world. Its wings measure up to 30 cm (12 in) across.

● The biggest nest ever made by paper wasps was found in New Zealand. It was as tall as two people and was so heavy it had fallen and broken in two.

Members of Bristol Zoo's education department have given the thumbs up to the books.

The Zoo has a team of five education officers who teach around 40,000 school children each year on a whole range of subjects, in the Zoo's Conservation Education Centre.

Dave Naish, Bristol Zoo's education manager, said: "Bristol Zoo Gardens is dedicated to helping people learn about the natural world. Visiting the Zoo gives children of all ages real life 'hands on' experiences, where they can see, hear, touch and explore the world around them. These books are a great introduction to spiders and other bugs and give youngsters a chance to find out all sorts of interesting facts about them. We have a great collection of animals in our education department – such as tarantulas, giant millipedes, hissing cockroaches, snakes, tortoises and small mammals – all of which we use in education sessions. The children absolutely love the opportunity to get up-close and touch them. It's great for youngsters to be given the chance to learn about, and be inspired by, nature from a young age.

"Books such as these can help spark this interest but its also great for children to see these animals in the flesh for themselves."

Next week you can collect the next book in the series, How Machines Work.

To find out how to get your Disney's The Wonderful World Of Knowledge books, go to www.thisisbristol.co.uk/books