Provides a comprehensive, factual book about the many elements of skins, including hair and nails, complete with index, visual references, illustrations, tables and more.

As in previous books in this critically acclaimed series, Brynie polled hundreds of high school students across the country to find out what they wanted to know most about their immune system. Using an accessible question-and-answer format, Brynie helps readers discover and learn facts about the inner workings of the human immune system. Brynie appealing and clear writing style makes learning about your immune system is easy as curing a cold.

As in previous books in this critically acclaimed series, Brynie polled hundreds of high school students across the country to find out what they wanted to know most about blood and circulation. Using an accessible question-and-answer format, Brynie helps readers discover and learn facts about the blood and circulation in human body. Brynie appealing and clear writing style makes learning about blood and circulation as easy as donating blood to the blood bank.

Uses a question-and-answer format to present information about sleep, sleeping disorders, how the lack of sleep can affect our bodies, and what causes us to dream.

How do living things reproduce? How do twins, triplets, and other multiple births happen? How does fertilization occur? Find out in this frank and accessible look at reproduction. Set up in a straightforward question and answer format, this informative title asks and answers questions about the basic scientific and social aspects of reproduction. Written in a conversational tone that draws readers in, 101 Questions about Reproduction is the perfect resource for biology and health classes, reference libraries, and more.

Questions and answers explain the human digestive system and how it uses food for nutrition.

As in previous books in this critically acclaimed series, Brynie polled hundreds of high school students across the country to find out what they wanted to know most about sex and sexuality. Using an accessible question-and-answer format, Brynie helps readers discover and learn facts about the sex and sexuality. Brynie appealing and clear writing style makes learning about sex and sexuality for students easy and understandable.