How to draw a ``bunch of documents'' icon with Tikz?

Question

I would like to draw something similar to this (see below) with Tikz. Except for the lines and the dog-eared thing. That is, I want to draw three nodes with a layer effect...

What I've tried so far :

\documentclass[a4paper,openright,twoside,11pt]{memoir}
\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}

\begin{figure}
\centering
\begin{tikzpicture}[font=\sffamily]
\tikzstyle{doc}=[%
minimum height=4em,
minimum width=3em,
draw
]

   \node[] (smthng) {};

   \node[doc] (doc) [below = of smthng] {docs};
   \node[doc] (doc2) [below = of smthng,yshift=4pt,xshift=4pt] {};
   \node[doc] (doc3) [below = of smthng,yshift=-4pt,xshift=-4pt] {};
\end{tikzpicture}
\caption{My docs.}
\end{figure}

\end{document}

Which produces :

Now I want node doc2 to be partially hidden by doc ; and doc partially hidden by doc3. How can I achieve that?

[EDIT] Actually the label docs should be on doc3...

Answer 1

I've seen this figure in TeX.SX, but while I try to find it, here you have a possible solution:

\documentclass[a4paper,openright,twoside,11pt]{memoir}
\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}

\begin{figure}
\centering
\begin{tikzpicture}[font=\sffamily]
\tikzstyle{doc}=[%
minimum height=4em,
minimum width=3em,
draw, fill=white
]
   \node[doc] (doc) {};
   \node[doc, below left = 4pt and 4pt of doc.north east] (doc2) {};
   \node[doc, below left = 4pt and 4pt of doc2.north east] (doc3) {docs};
\end{tikzpicture}
\caption{My docs.}
\end{figure}

\end{document}

Update: Even easier with a double copy shadow

double copy shadow style from shadows library can do it with less code:

\documentclass[a4paper,openright,twoside,11pt]{memoir}
\usepackage{tikz}
\usetikzlibrary{positioning, shadows}

\begin{document}

\begin{figure}
\centering
\begin{tikzpicture}[font=\sffamily,
    doc/.style={draw, minimum height=4em, minimum width=3em, 
                fill=white, 
                double copy shadow={shadow xshift=4pt, 
                             shadow yshift=4pt, fill=white, draw}},
]
   \node[doc] (doc) {doc};
\end{tikzpicture}
\caption{My docs.}
\end{figure}

Answer 2

Here's a bit of an overkill solution. :D

Ouput

Code

\documentclass{article}
\usepackage{geometry}
\usepackage{lipsum}
\usepackage{tikz}
\usetikzlibrary{calc,arrows.meta,positioning}

\tikzset{
    arr/.style={{Round Cap[]}-{Round Cap[]}, line width=1.5mm, shorten >=3.5mm, shorten <=3.5mm}
}

\newcommand{\picon}[1][1]{
\scalebox{#1}{%
\tikz{
    \begin{scope}[shift={(1,1)}]
    \node[draw, fill=white, line width=2mm, minimum height=2.5cm, minimum width=1.8cm] (o) at (0,0) {};
    \draw[white, fill=white] ($(o.north east)+(-6mm,0)$) --++ (6mm,0) --++ (0,-6mm) -- cycle;
    \fill[black] ($(o.north east)+(0,-6mm)$) --++ (0,-1mm) --++ (-7mm,0) --++ (0,7mm) --++ (1mm,0) -- cycle;
    \end{scope}
    \begin{scope}[shift={(.5,.5)}]
    \node[draw, fill=white, line width=2mm, minimum height=2.5cm, minimum width=1.8cm] (p) at (0,0) {};
    \draw[white, fill=white] ($(p.north east)+(-6mm,0)$) --++ (6mm,0) --++ (0,-6mm) -- cycle;
    \fill[black] ($(p.north east)+(0,-6mm)$) --++ (0,-1mm) --++ (-7mm,0) --++ (0,7mm) --++ (1mm,0) -- cycle;
    \node[anchor=south west, fill=white, minimum width=1cm, minimum height=1.5mm, outer sep=0, inner sep=0] at (p.north west) {};
    \node[anchor=south west, fill=white, minimum width=1.5mm, minimum height=1cm, outer sep=0, inner sep=0] at (p.south east) {};
    \end{scope}
    \node[draw, fill=white, line width=2mm, minimum height=2.5cm, minimum width=1.8cm, inner sep=0] (n) at (0,0) {};
    \draw[white, fill=white] ($(n.north east)+(-6mm,0)$) --++ (6mm,0) --++ (0,-6mm) -- cycle;
    \fill[black] ($(n.north east)+(0,-6mm)$) --++ (0,-1mm) --++ (-7mm,0) --++ (0,7mm) --++ (1mm,0) -- cycle;
    \node[anchor=south west, fill=white, minimum width=1cm, minimum height=1.5mm, outer sep=0, inner sep=0] at (n.north west) {};
    \node[anchor=south west, fill=white, minimum width=1.5mm, minimum height=1cm, outer sep=0, inner sep=0] at (n.south east) {};
    \foreach \n in {.32,.44,.56,.68,.8}{
    \draw[arr] ($(n.north west)!\n!(n.south west)$) -- ($(n.north east)!\n!(n.south east)$);}
    \node[anchor=south west, minimum size=2.4mm,fill=black, outer sep=0, inner sep=0] (m) at ($(o.north east)+(-7mm,-7mm)$) {};
    \node[anchor=south west, minimum size=2.4mm,fill=black, outer sep=0, inner sep=0] (m) at ($(p.north east)+(-7mm,-7mm)$) {};
    }}
}

\begin{document}
\lipsum*[1]

\begin{figure}[!h]
\centering
\picon
\caption{Some docs}
\end{figure}

\lipsum*[2]

\begin{figure}[!h]
\centering
\picon[.2]
\caption{Smaller docs}
\end{figure}
\end{document}

Answer 3

I needed to do the same kind of thing, here's my solution

\documentclass{standalone} 
\usepackage{tikz}
\usetikzlibrary{positioning,calc}
\begin{document} 
   \begin{tikzpicture}
     \def\corner{0.15in}
     \def\cornerradius{0.02in}
     \def\lwidth{0.02in}
     \def\h{1.1in}
     \def\w{0.85in}
     \def\nline{10}
     \def\iconmargin{0.1in}
     \def\topmargin{0.3in}
     \foreach[count=\i] \filename in {bar.c,bar.h,foo.c,foo.h}
     {
     \coordinate (nw) at ($(-0.05in*\i,-0.15in*\i)$);
     \coordinate (ne0) at ($(nw) + (\w, 0)$);
     \coordinate (ne1) at ($(ne0) - (\corner, 0)$);
     \coordinate (ne2) at ($(ne0) - (0, \corner)$);
     \coordinate (se) at ($(ne0) + (0, -\h)$); 
     \filldraw [-, line width = \lwidth, fill=white] (nw) -- (ne1) -- (ne2)
      [rounded corners=\cornerradius]--(se) -- (nw|-se) -- cycle;
     \draw [-, line width = \lwidth] (ne1) [rounded corners=\cornerradius]-- (ne1|-ne2) -- (ne2);
     \node [anchor=north west] at (nw) {\scriptsize \tt \filename};
     \foreach \k in {1,...,\nline}
     {
       \draw [-, line width = \lwidth, line cap=round] 
         ($(nw|-se) + (\iconmargin,\iconmargin) + (0,{(\k-1)/(\nline-1)*(\h - \iconmargin - \topmargin)})$)
           -- ++ ($(\w,0) - 2*(\iconmargin,0)$);
     }
     }
   \end{tikzpicture}
\end{document}