The Journal.
Plain guides to what things are worth and why. Written for people who collect, and for anyone about to buy or sell something they would rather not get wrong.
Trading cards
1st Edition, Shadowless, Unlimited: telling Base Set apart
The three English printings of the Pokémon Base Set look alike at a glance and are priced far apart. Here is how to tell them apart in under a minute, without a loupe.
Raw or graded: what a grade changes about a card
A graded card and a raw card can be the same piece of cardboard at very different prices. What graders look at, what a slab proves, and when grading is worth the fee.