Never clean your coins. Here is how to store a collection properly — the right holders, the PVC danger, humidity control, and when to insure what you own.
Pre-1965 silver coins, Kennedy half dollars, war nickels, and wheat pennies — here is what to look for in your change jar and the current approximate values.
Inside AI coin identification — how convolutional neural networks distinguish mint marks and date numerals, why coin wear is a hard problem, and where AI still struggles.
Coin collecting is more affordable than you think. Here is how to start — which approach to take, what tools you need, and where to find your first coins.
The 1969-S doubled die cent, silver Roosevelt dimes, the 1982 no-P dime, and war nickels — here is what to look for in your pocket change and what they are worth.
British crowns, Canadian silver dollars, Mexican silver pesos, Chinese dragon dollars, and more — the world coins worth pursuing and what makes them desirable.