To create a flip open photos pile, simply follow the steps below:
1. Gather all the photographs that you want to include into the layout and try to lay them out on your empty cardstock. Try to arrange it in a way that you can flip the photos in a particular order and also try to create an interesting design with your arrangement. (Do not worry about your photos overlapping)
2. Mat all your photographs and add a 1 or 2 inch tab where you want your photos to flip open. Brads will be added to these tabs to enable the photos to flip open. (Tip: make sure you have at least 1/3 of the tab attached securely onto the photos)
3. You can add some journaling at the back of each individual photographs that's in the pile. I've journaled about each individual photographs in my layout. Add a little decorations to it to create more interest.
4. Lastly, try to flip open all the photos one by one until finally you are able to flip open all of them and reveals all the journalings behind them.
By using this technique, you are able to create a layout with lots of photographs and yet not blocking the view of each of them. You are also able to create a more interesting page by adding a mini journaling layout behind each and every photos in your layout.
For the finished layout, you can refer to my layout "Heroes Of Earth Concert" in my family gallery.