Glassmaking IV: "Secrets of the Carlow Crystal Makers" is a skill book item in Project Zomboid. It trains Glassmaking for levels 7–8 and has 340 pages. Build 42.21 data, November 2026.
Skill Book Books & media
It trains Glassmaking for levels 7–8 and has 340 pages. It weighs 1.
Skill books multiply the experience you earn in one skill for a band of levels, so read the volume that matches your level before training. Other literature eases boredom and unhappiness, and magazines and schematics teach recipes.
More: Skill books and reading · Every skill.
Use the item ID in sandbox loot settings, admin tools and mods.
| Item ID | Game category |
|---|---|
Base.BookGlassmaking4 | Skill Book |
Glassmaking IV: "Secrets of the Carlow Crystal Makers" is on 10 loot tables in the game files. Share is how much of a table's total weight this item takes, before your sandbox loot settings. Each container rolls its table several times, so a bigger share and more rolls both mean you see it more often.
| Loot table | Where that table is used | Share | Rolls |
|---|---|---|---|
| Bookstore Crafts | Bookstore (shelves) | 4.1% | 4 |
| Optometrist Desk | Special spawn (vehicles, events or zombies) | 3.4% | 4 |
| Tool Store Books | Garage storage (shelves); Tool Store (cupboard, shelves) | 1.6% | 4 |
| University Library Books | University library (shelves); University storage (shelves) | 1.4% | 4 |
| Bookstore Books | Bookstore (crate, box); Pawnshop (box, shelves) | 0.81% | 4 |
| Library Books | Library (shelves) | 0.63% | 4 |
| Crate Books | Attic (box, crate); Bathroom (box, crate); Bedroom (box, crate); and 5 more places | 0.26% | 4 |
| Post Office Books | Post Office (box); Post storage (box) | 0.19% | 4 |
It is on 2 more tables with smaller shares.
On zombies: zombies in these outfits can carry it: Survivalist, Survivalist 02, Survivalist 02 Late, Survivalist 02 Mid, Survivalist 03, Survivalist 03 Late, Survivalist 03 Mid, Survivalist 04 and 7 more.
Inside bags and cases: Military Backpack.
Town by town: loot locations.
Used up as an ingredient in 1 recipe: Pack Set of Books in Box.
It weighs 1 in Build 42.
Base.BookGlassmaking4.
It trains Glassmaking for levels 7–8.
Stats and item IDs from the Build 42 game data as listed on pzfans.com. Item art is from Project Zomboid.