Description: Customized sex education tailored by age and gender! Instill biblical values about sex in your precious children! As various sex crimes have become a significant social issue, the need for sex education has come to the forefront. Especially in today's social and cultural climate, where even a sense of sexual identity is being shaken, biblical sex education is more important than ever. Yet many parents and teachers still feel uncomfortable and embarrassed, unsure of where or how to begin teaching this topic. While adults hesitate, there is growing concern that children may pick up incorrect information about sex through social media or friends. The 'Our Children's Biblical Sex Education Series' was created with these concerns in mind. One of the biggest features of this book is that it is divided into four stages according to age, and further organized by gender so that sex education can be tailored accordingly. Through this series, children can receive customized sex education grounded in biblical values — starting from early childhood, when curiosity about the differences between boys and girls first emerges, all the way through adolescence, when accurate and specific knowledge about sex needs to be firmly established. While this series cannot provide all knowledge about 'sex,' it clearly offers guidance rooted in biblical sex education. We hope that parents and teachers will use this book as an opportunity to have honest and natural conversations about sex together with their children. Series Introduction: Our Children's Biblical Sex Education Series (Revised Edition) The Next Generation Research Institute, established with the support of Bundang Woori Church (Senior Pastor Lee Chan-soo), was founded to help build up families, churches, the next generation, their parents, and next-generation ministry workers according to biblical values. As part of its mission to support families, the institute discovered and supervised the 'Learning About Sex Series' from Concordia Publishing House, a Christian publisher in the United States, in order to help parents provide biblical sex education to their children. This series was introduced in Korea under the title 'Our Children's Biblical Sex Education Series.' As children today grow up much faster than parents expect, many Christian parents and teachers deeply struggle with the questions of 'when' and 'how' to provide sex education. The 'Our Children's Biblical Sex Education Series' was created with these concerns in mind. Divided into four stages from early childhood through adolescence, it conveys what children at each age level need to know, grounded in the truth of God's creation. Another key feature of this series is that it separates books by gender — for boys and for girls — allowing for customized sex education based on both age and gender. In particular, this newly revised edition of the 'Our Children's Biblical Sex Education Series' preserves the biblical values found in the original text while adapting the language and stages to fit Korean sensibilities. It also includes guidance videos explaining 'Why Biblical Sex Education Matters' and 'Key Points for Each Stage of the Curriculum,' helping readers make the most of the series. Additionally, a workbook (sold separately) has been published to help families and churches carry out biblical sex education more effectively. We hope this series will have a positive influence on establishing a healthy culture around sexuality within the Korean church.