Double sided design to minimize distortion For observers in the northern hemisphere looking south, between the equator and latitude 60 degrees north
I2AO Part 4: Observing the Southern Sky
How to use a planisphere - BBC Sky at Night Magazine
Sky Maps, Star Charts, & Planispheres
How do I find out what is going to be in the night sky in my area? - Beginners Forum (No Astrophotography) - Cloudy Nights
Planisphere
How to Use a Planisphere
Tirion Double-Sided Multi-Latitude Planisphere with Astro R-Lite — Explore Scientific
Planisphere
Tirion Double-Sided Multi-Latitude Planisphere — Explore Scientific