diff --git a/README.org b/README.org
index d64eaf5..9e7b1dd 100755
--- a/README.org
+++ b/README.org
@@ -7,13 +7,14 @@ data using the R programming environment
 
  * [[./script/help_r.org][Asking for help to use R]]
  * [[./doc/install_Rsource.org][Installing R from source]]
+ * [[./doc/objects.org][Objects in R]]
  * [[./script/integerq_modulo.R][Integer quocient and modulo]]
  * [[./script/non_stand_eval.R][Non-standard evaluation in R]]
 
 ** Matching patterns
 
  * [[./doc/match.patt.org]['gsub' and 'sub']]
- 
+
 ** Subsetting and indexing
 
  * [[./script/replace_values.R][Build column in table indexing values]]
diff --git a/doc/objects.org b/doc/objects.org
new file mode 100755
index 0000000..038b0c3
--- /dev/null
+++ b/doc/objects.org
@@ -0,0 +1,47 @@
+#+TITLE: Loading data into R
+#+DATE: 2022-02-18
+#+AUTHOR: José https://ajuda.multifarm.top
+#+OPTIONS: num:nil toc:2
+#+BIBLIOGRAPHY: ../bib/references.bib
+#+PROPERTY: header-args:R :results output :session *Rl1* :cmdline :tangle yes
+#+PROPERTY: header-args:R+ :exports both
+
+** Objects in R
+
+#+begin_quote
+
+  Everything in R is an object; that is, a dynamically created, self-
+  describing container for data.
+
+  Everything that "happens" is a function, i.e, and object that contais
+  another objects (arguments). The fundamental computation in
+  R is a function call.
+
+  Objects are, almost always, created by assiging a name in an environment:
+
+#+end_quote
+
+[cite:@chambers2008software]
+
+Creating an object
+
+#+begin_src R
+  object1 = c(1:5)
+#+end_src
+
+Visualizing the object
+
+#+begin_src R
+  object1
+#+end_src
+
+** Three objects that are different from other 'common' objects in R
+
+- Connections
+- Environments
+- External pointers
+
+
+** References
+
+#+print_bibliography: