diff --git a/R/column_spec.R b/R/column_spec.R
index 27c76b6..615a22e 100644
--- a/R/column_spec.R
+++ b/R/column_spec.R
@@ -5,7 +5,7 @@
 #' bold text and italic text.
 #'
 #' @param kable_input Output of `knitr::kable()` with `format` specified
-#' @param columns A numeric value or vector indicating which column(s) to be selected.
+#' @param column A numeric value or vector indicating which column(s) to be selected.
 #' @param width A character string telling HTML & LaTeX how wide the column
 #' needs to be, e.g. "10cm", "3in" or "30em".
 #' @param bold A T/F value to control whether the text of the selected column
@@ -24,22 +24,18 @@
 #' @param border_right A logical variable indicating whether there should be a
 #' border line on the right of the selected column. In HTML, you can also pass
 #' in a character string for the CSS of the border line
-#' @param column Deprecating. Same with columns
 #'
 #' @examples x <- knitr::kable(head(mtcars), "html")
 #' column_spec(x, 1, width = "20em", bold = TRUE, italic = TRUE)
 #'
 #' @export
-column_spec <- function(kable_input, columns = NULL,
+column_spec <- function(kable_input, column,
                         width = NULL, bold = FALSE, italic = FALSE,
                         monospace = FALSE, color = NULL, background = NULL,
                         border_left = FALSE, border_right = FALSE,
-                        column, ...) {
-  if (is.null(columns)) {
-    columns <- column
-  }
-  if (!is.numeric(columns)) {
-    stop("columns/column must be numeric. Note that column is deprecating.")
+                        ...) {
+  if (!is.numeric(column)) {
+    stop("column must be numeric. ")
   }
   kable_format <- attr(kable_input, "format")
   if (!kable_format %in% c("html", "latex")) {
@@ -47,20 +43,20 @@
     return(kable_input)
   }
   if (kable_format == "html") {
-    return(column_spec_html(kable_input, columns, width,
+    return(column_spec_html(kable_input, column, width,
                             bold, italic, monospace,
                             color, background,
                             border_left, border_right))
   }
   if (kable_format == "latex") {
-    return(column_spec_latex(kable_input, columns, width,
+    return(column_spec_latex(kable_input, column, width,
                              bold, italic, monospace,
                              color, background,
                              border_left, border_right, ...))
   }
 }
 
-column_spec_html <- function(kable_input, columns, width,
+column_spec_html <- function(kable_input, column, width,
                              bold, italic, monospace,
                              color, background,
                              border_left, border_right) {
@@ -89,7 +85,7 @@
   }
 
   for (i in all_contents_rows) {
-    for (j in columns) {
+    for (j in column) {
       target_cell <- xml_child(xml_child(kable_tbody, i), j)
       if (!is.null(width)) {
         xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
@@ -131,7 +127,7 @@
   return(out)
 }
 
-column_spec_latex <- function(kable_input, columns, width,
+column_spec_latex <- function(kable_input, column, width,
                               bold, italic, monospace,
                               color, background,
                               border_left, border_right,
@@ -144,8 +140,8 @@
   align_collapse <- ifelse(table_info$booktabs, "", "\\|")
   kable_align_old <- paste(table_info$align_vector, collapse = align_collapse)
 
-  table_info$align_vector[columns] <- unlist(lapply(
-    table_info$align_vector_origin[columns],
+  table_info$align_vector[column] <- unlist(lapply(
+    table_info$align_vector_origin[column],
     function(x) {
       latex_column_align_builder(
         x, width, bold, italic, monospace,
@@ -163,7 +159,7 @@
     if (is.null(table_info$column_width)) {
       table_info$column_width <- list()
     }
-    for (i in columns) {
+    for (i in column) {
       table_info$column_width[[paste0("column_", i)]] <- width
     }
   }
diff --git a/R/row_spec.R b/R/row_spec.R
index 7a17e8c..5a77ee4 100644
--- a/R/row_spec.R
+++ b/R/row_spec.R
@@ -5,7 +5,7 @@
 #' italic text.
 #'
 #' @param kable_input Output of `knitr::kable()` with `format` specified
-#' @param row A numeric value indicating which row to be selected. You don't
+#' @param row A numeric value or vector indicating which row(s) to be selected. You don't
 #' need to count in header rows or group labeling rows.
 #' @param bold A T/F value to control whether the text of the selected row
 #' need to be bolded.
@@ -26,7 +26,7 @@
                      bold = FALSE, italic = FALSE, monospace = FALSE,
                      color = NULL, background = NULL) {
   if (!is.numeric(row)) {
-    stop("row must be a numeric value")
+    stop("row must be numeric. ")
   }
   kable_format <- attr(kable_input, "format")
   if (!kable_format %in% c("html", "latex")) {
@@ -51,36 +51,38 @@
 
   group_header_rows <- attr(kable_input, "group_header_rows")
   if (!is.null(group_header_rows)) {
-    row <- positions_corrector(row, group_header_rows,
-                               length(xml_children(kable_tbody)))
+      row <- positions_corrector(row, group_header_rows,
+                                 length(xml_children(kable_tbody)))
   }
 
-  target_row <- xml_child(kable_tbody, row)
-
-  for (i in 1:length(xml_children(target_row))) {
-    target_cell <- xml_child(target_row, i)
-    if (bold) {
-      xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
-                                               "font-weight: bold;")
-    }
-    if (italic) {
-      xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
-                                               "font-style: italic;")
-    }
-    if (monospace) {
-      xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
-                                               "font-family: monospace;")
-    }
-    if (!is.null(color)) {
-      xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
-                                               "color: ", color, ";")
-    }
-    if (!is.null(background)) {
-      xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
-                                               "background-color: ",
-                                               background, ";")
+  for (j in row) {
+    target_row <- xml_child(kable_tbody, j)
+    for (i in 1:length(xml_children(target_row))) {
+      target_cell <- xml_child(target_row, i)
+      if (bold) {
+        xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
+                                                 "font-weight: bold;")
+      }
+      if (italic) {
+        xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
+                                                 "font-style: italic;")
+      }
+      if (monospace) {
+        xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
+                                                 "font-family: monospace;")
+      }
+      if (!is.null(color)) {
+        xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
+                                                 "color: ", color, ";")
+      }
+      if (!is.null(background)) {
+        xml_attr(target_cell, "style") <- paste0(xml_attr(target_cell, "style"),
+                                                 "background-color: ",
+                                                 background, ";")
+      }
     }
   }
+
   out <- as_kable_xml(kable_xml)
   attributes(out) <- kable_attrs
   return(out)
@@ -89,7 +91,22 @@
 row_spec_latex <- function(kable_input, row, bold, italic, monospace,
                            color, background) {
   table_info <- magic_mirror(kable_input)
-  target_row <- table_info$contents[row + 1]
+  out <- enc2utf8(as.character(kable_input))
+  row <- row + 1
+  for (i in row) {
+    target_row <- table_info$contents[i]
+    new_row <- latex_new_row_builder(target_row, bold, italic, monospace,
+                                     color, background)
+    out <- sub(target_row, new_row, out, perl = T)
+  }
+
+  out <- structure(out, format = "latex", class = "knitr_kable")
+  attr(out, "kable_meta") <- table_info
+  return(out)
+}
+
+latex_new_row_builder <- function(target_row, bold, italic, monospace,
+                                  color, background) {
   new_row <- latex_row_cells(target_row)
   if (bold) {
     new_row <- lapply(new_row, function(x) {
@@ -118,9 +135,5 @@
     new_row <- paste0("\\\\rowcolor{", background, "}  ", new_row)
   }
 
-  out <- sub(target_row, new_row, enc2utf8(as.character(kable_input)),
-             perl = T)
-  out <- structure(out, format = "latex", class = "knitr_kable")
-  attr(out, "kable_meta") <- table_info
-  return(out)
+  return(new_row)
 }
diff --git a/man/column_spec.Rd b/man/column_spec.Rd
index efe653d..dc10432 100644
--- a/man/column_spec.Rd
+++ b/man/column_spec.Rd
@@ -6,14 +6,12 @@
 \usage{
 column_spec(kable_input, column, width = NULL, bold = FALSE,
   italic = FALSE, monospace = FALSE, color = NULL, background = NULL,
-  border_left = FALSE, border_right = FALSE)
+  border_left = FALSE, border_right = FALSE, ...)
 }
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
 
-\item{column}{A numeric value indicating which column to be selected. When
-you do the counting, ignore the extra header columns you added through
-add_header_left.}
+\item{column}{A numeric value or vector indicating which column(s) to be selected.}
 
 \item{width}{A character string telling HTML & LaTeX how wide the column
 needs to be, e.g. "10cm", "3in" or "30em".}
diff --git a/man/row_spec.Rd b/man/row_spec.Rd
index e31ba67..eaf7b57 100644
--- a/man/row_spec.Rd
+++ b/man/row_spec.Rd
@@ -10,7 +10,7 @@
 \arguments{
 \item{kable_input}{Output of \code{knitr::kable()} with \code{format} specified}
 
-\item{row}{A numeric value indicating which row to be selected. You don't
+\item{row}{A numeric value or vector indicating which row(s) to be selected. You don't
 need to count in header rows or group labeling rows.}
 
 \item{bold}{A T/F value to control whether the text of the selected row