Description: Customized sex education tailored by age and gender! Help instill biblical values about sex in your precious children! As various sex-related crimes have become a growing social issue, the need for sex education has become more apparent than ever. In particular, in a society and culture where even sexual identity is being challenged, biblical sex education has become 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 'Biblical Sex Education Series for Our Children' was created with these concerns in mind. A key feature of this series is that it is divided into four stages by age and further separated by gender, allowing for customized sex education. Through this series, children can receive biblical, age-appropriate sex education—from early childhood, when they first begin noticing differences between boys and girls, through adolescence, when accurate and specific knowledge about sex becomes essential. While this series cannot cover every aspect of the topic, it offers clear, biblically grounded guidance. We hope that parents and teachers will use this book as an opportunity to read together with their children and have honest, natural conversations about sex. [Series Introduction] Biblical Sex Education Series for Our Children (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 ministers through biblical values. As part of its ministry to support families, the institute discovered and supervised the translation of the 'Learning About Sex Series' published by Concordia Publishing House, a Christian publisher in the United States, introducing it in Korea under the title 'Biblical Sex Education Series for Our Children.' Many Christian parents and teachers struggle deeply with knowing 'when and how' to provide sex education, especially as children today seem to grow up faster than expected. The 'Biblical Sex Education Series for Our Children' was created to address these concerns. Divided into four stages from early childhood through adolescence, the series conveys what children at each age need to know, grounded in God's plan of creation. Another distinctive feature of this series is that it is separated into books for boys and girls, allowing for education tailored to both age and gender. This newly revised edition maintains the biblical values found in the original while adapting the language and structure to fit Korean sensibilities. It also includes guide videos explaining 'Why Biblical Sex Education Matters' and 'Key Points for Each Stage,' helping readers make the most of the series. In addition, workbooks (sold separately) have been published to help families and churches carry out biblical sex education more effectively. We hope this series will have a positive impact on establishing a healthy culture around sexuality within the Korean church.