From Diablo Wiki
The Farmer's Journal always appears in Act I.
Only one of your characters needs to find the journal for you to be credited with it.
To find out which journals you have found so far go to your Achievements list (press Y) and check:
- Campaign > Act I > A Quick Study
|Found in the Fields of Misery in Swickard's Corpse where the Tinker's Hovel etc spawns. #6 on the map.|
|Part||Text||Found on Quest|
|1||I'm not quite sure what all the fuss is about. Few farmers turn up dead, and everyone goes running for the hills. I've lived off these lands for twenty years, and I have not seen any bloodthirsty monsters running about. No reason I should leave a perfectly good harvest.||Any|
 Farming for the Farmer's Journal
- From the Quest Selection screen take quest No. 6. The Broken Blade.
- Accept the quest from Leah in Tristram.
- Take the Waypoint from Tristram to the Fields of Misery.
- Whichever waypoint you appear at you need to head north until you hit the north edge of the map.
- Follow the edge along and at some point you will come to some mud steps which will lead up to a Sheltered Cottage.
- Outside could be Swickard's Corpse which will loot the Farmer's Journal or a bag (Tinker's Possessions) containing the Wandering Tinker's Diary.
- If the cottage is the Tinker's Hovel, the Wandering Tinker will be inside.
- If what you are looking for is not there carry on along the top of the map until you reach the slope up to The Old Mill where you will get a Checkpoint. Leave the game and Resume Game and take the portal waiting for you in Tristram directly back to the slope.
- Run along the top of the map again looking for the steps.
 Associated Achievements
Farmer's Journal is in some way involved in the following achievement(s).
| Books & Lore of the
|Tomes - Lore Books  In-game: People World/Quests Bestiary Diablo I & II Extra: Manuals/Other Novels History|
|Diablo I Tomes||Diablo II Tomes|
|Diablo I Manual||Diablo II Manual||D2: LoD Manual||Diablo III Manual||Other sources|
Abd al-Hazir (Writings)
|Diablo novels||The Sin War Trilogy||Diablo III novels||Diablo comics||Other books|