Packt has an eBook sale going on. All eBooks are $5 including lost of the spatial books including the new PostGIS Cookbook that comes out next month. Other spatial books of note include:
- Programming ArcGIS 10.1 with Python Cookbook
- Learning Geospatial Analysis with Python
- Google Maps JavaScript API Cookbook
- Learning QGIS 2.0
- Python Geospatial Development – Second Edition
- GeoServer Beginner’s Guide
- OpenStreetMap
The sale ends January 3rd so you have some time.