Learn about the book-to-bill ratio, its calculation, significance in industries like technology, and how it signals market trends through real examples and expert insights.

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Somer G.

Don't underestimate the volatility of crypto. Your portfolio will thank you later.

Retiring at 60 with $1 million is possible for some people, but the outcome depends on how long the money needs to last, how much is withdrawn each year and what other income sources are available. A ...