diff --git a/docs/make.jl b/docs/make.jl
new file mode 100644
index 00000000..d6d3f49f
--- /dev/null
+++ b/docs/make.jl
@@ -0,0 +1,5 @@
+push!(LOAD_PATH, joinpath("..", "src"))
+
+using Documenter, SimpleSDMLayers
+
+makedocs(sitename="Simple SDM Layers")
diff --git a/docs/src/index.md b/docs/src/index.md
new file mode 100644
index 00000000..691c0f0f
--- /dev/null
+++ b/docs/src/index.md
@@ -0,0 +1,15 @@
+# Simple SDM Layers
+
+```@docs
+SimpleSDMLayer
+SimpleSDMResponse
+SimpleSDMPredictor
+```
+
+```@docs
+worldclim
+```
+```@docs
+latitudes
+longitudes
+```
diff --git a/src/bioclimaticdata/worldclim.jl b/src/bioclimaticdata/worldclim.jl
index ca98a475..84fee99e 100644
--- a/src/bioclimaticdata/worldclim.jl
+++ b/src/bioclimaticdata/worldclim.jl
@@ -87,4 +87,7 @@ Return a single layer from WorldClim 2.0.
 """
 worldclim(layer::Int64; x...) = worldclim([layer]; x...)[1]
 
+"""
+Return a range of layers from WorldClim 2.0.
+"""
 worldclim(layers::UnitRange{Int64}; x...) = worldclim(collect(layers); x...)