Discover the main systems of our amazing human body with this new series of books! The blood that flows through your body constantly brings food and oxygen to your muscles, organs, and bones and carries away waste. And it is all powered by that magnificent muscle, your heart. Did you know that your heart beats about 100,000 times a day? Or that the blood in your body travels a total of 12,000 miles daily? That's more than four times the width of the United States from coast to coast! Learn all this and more in Circulatory System. ABOUT THE SERIES: The human body is a complex ⹀ and remarkable ⹀ machine. Digesting our food. Pumping our blood. Walking, running, and dancing. It takes our many body systems working together to keep us alive and living our lives to the fullest. This set of A True Books offers an in-depth look at our amazing bodies ⹀ one system at a time. Interesting information is presented in a fun, friendly way ⹀ and in the simplest terms possible ⹀ giving students a "behind-the-scenes" look at how their bodies work.

Discover the main systems of our amazing human body with this new series of books! The blood that flows through your body constantly brings food and oxygen to your muscles, organs, and bones and carries away waste. And it is all powered by that magnificent muscle, your heart. Did you know that your heart beats about 100,000 times a day? Or that the blood in your body travels a total of 12,000 miles daily? That's more than four times the width of the United States from coast to coast! Learn all this and more in Circulatory System. ABOUT THE SERIES: The human body is a complex ⹀ and remarkable ⹀ machine. Digesting our food. Pumping our blood. Walking, running, and dancing. It takes our many body systems working together to keep us alive and living our lives to the fullest. This set of A True Books offers an in-depth look at our amazing bodies ⹀ one system at a time. Interesting information is presented in a fun, friendly way ⹀ and in the simplest terms possible ⹀ giving students a "behind-the-scenes" look at how their bodies work.

A series to build strong financial habits early on in life! How can I make money? What is inflation? What is the difference between a debit card and a credit card? Economics-and more specifically, money-play such a large role in our lives. Yet there are many mysteries and misconceptions surrounding the basic concepts of finance and smart money management. This set of True Books offers students the know-how they'll need to start on the road to financial literacy-a crucial skill for today's world. Interesting information is presented in a fun, friendly way-and in the simplest terms possible-which will enable students to build strong financial habits early on in life. Understanding how society progressed from the barter system to currency-and how that money works in the global economy-are just two critical financial literacy skills that all kids should have. Did you know that the first paper currency appeared more than 1,200 years ago? Or that the currency of the future will likely be digital? Learn all this and more in What Is Money?-a book that starts kids on the road to financial literacy.