Organic compounds form all earthly life, so essentially, covalent bonds determine life per se. The chapter elaborately covers popular theories explaining the bond formation, molecular shapes, and covalent bond properties in the book "Introductory Organic Chemistry."
CurlyArrows has created a beginner's guide- Introductory Organic Chemistry as a prerequisite to organic chemistry reactions. It comprises 13 carefully crafted, simplified, illustrative, and descriptive chapters.