Ok. I was comparing my book to all the other ones on ebay and noticed that the text on the second page seems to be spaced or sized differently. My book the text isbn end right at the bottom of the page. Other don't. The picture size of the three nights is 9 and a half mm. Perhaps a lighter font on monster manual.

The grand majority of misprints are worth less than non-misprints. Only ones in greater circulation (such as the famous DMG misprint with monster manual pages) have increased value.

First off, the book you have looks like it is a 4th print Alpha. The book you are comparing it to isn't the same printing. Different printings may or may not have different spacing. So you are going to have to compare it to a bunch of the same printing that YOU have before you can determine your book as being special.

Second, if your book does happen to be special, collectors just aren't interested in the minutia of collecting that you are trying for. If it was Stamps or Coins, a few other things - there is added interest and more money involved with specials. Unfortunately in this, it just doesn't work that way, except for the misprint Dungeon Master Guides. Lots of things in life are what they are.

Describe what you have the best that you can and hope someone agrees with your assessment and wants to pay your price. That's the best you can hope for - good luck

Mister Yuk wrote in Advanced D&D Monster Manual Missprint? Please look:First off, the book you have looks like it is a 4th print Alpha. The book you are comparing it to isn't the same printing. Different printings may or may not have different spacing. So you are going to have to compare it to a bunch of the same printing that YOU have before you can determine your book as being special.

Second, if your book does happen to be special, collectors just aren't interested in the minutia of collecting that you are trying for. If it was Stamps or Coins, a few other things - there is added interest and more money involved with specials. Unfortunately in this, it just doesn't work that way, except for the misprint Dungeon Master Guides. Lots of things in life are what they are.

Describe what you have the best that you can and hope someone agrees with your assessment and wants to pay your price. That's the best you can hope for - good luck

Haha that's because their isn't any I can't compare it to just giving an example!