Here are some other books he has written:
* "The Retirement Planning Guide For The Rest Of Us"
* "Retirement Planning: How to Avoid 5 Costly Mistakes"
* "Retirement Planning: What Your Broker Isn't Telling You"
* "Retirement Planning: How to Save Money and Live Comfortably"
* "The 4% Rule: How To Safely Withdraw From Your Retirement Savings"
He has also written numerous articles and been featured in various media outlets.
Whitmer's writing is often considered to be direct, clear, and informative, with a strong focus on helping individuals understand the complexities of financial planning and retirement. He advocates for a holistic approach to retirement planning that includes not only financial considerations but also lifestyle and personal goals.