Notes on Basic 3-Manifold Topology by Allen Hatcher
2000
Number of pages: 61
The little that exists of the 3-manifolds book (see below for a table of contents) is rather crude and unpolished, and doesn't cover a lot of material, but it does contain a few things that aren't readily available elsewhere, like the elementary form of the Jaco-Shalen/Johannson torus decomposition theorem.
Mathematics Geometry & Topology Topology Geometric