The shelf in the first picture is made of red oak plywood. You can choose the wood type, color and design as you like for your project. In case if you need more help understanding this project, you can refer the source link below. It discusses various items used, steps and tips and personal experience of the author who personally built a Zigzag shelf.
Making an art or a design on a wooden piece is a hectic task and requires good art skills. But there is another much easier way to carve a beautiful art on any wood surface. For this, you will need the image or graphic that you want to transfer, a piece of wood, freezer paper, etc. I, myself have made several such designs. At the source below, you can find a step by step guide for transferring a graphic image to the wood.
This plan is probably the easiest plan ever added in the list. The one who is working on this project, don’t need any professional skills but just knowing some basics of woodworking will be enough for this DIY. You will get step by step detailed process of this tutorial in the source linked tutorial. This tutorial will surely help you to build this plan quickly.
There is significant evidence of advanced woodworking in ancient Egypt.[1] Woodworking is depicted in many extant ancient Egyptian drawings, and a considerable amount of ancient Egyptian furniture (such as stools, chairs, tables, beds, chests) has been preserved. Tombs represent a large collection of these artefacts and the inner coffins found in the tombs were also made of wood. The metal used by the Egyptians for woodworking tools was originally copper and eventually, after 2000 BC bronze as ironworking was unknown until much later.[2]

Old doors laid across sawhorses make great temporary workbenches, but they take up a lot of space when you’re not using them. Instead of full-size doors, I use bifold doors with hinges so I can fold them up when I’m done working. They’re also easier to haul around in the pickup for on-the-road jobs. — Harry Steele. Here are 12 more simple workbenches you can build.
I mix a lot of epoxy in small batches, but I’ve seldom had the right size container on hand. I solved this problem by drilling 1-1/2-in. holes in 2×4 scraps with a Forstner bit. The resulting shallow “cups” allow easy mixing without the risk of spilling. When the holes are used up, I just make a new mixing board. — Bill Wells. Save your takeout utensils to use in the shop!
Fir, also known as Douglas Fir, is very inexpensive and common at local home centers. It has a characteristic straight, pronounced grain with a red-brown tint. However, its grain pattern is relatively plain and it does not stain well, so Fir is commonly used when the finished product will be painted. While commonly used for building, this softwood would also be suitable for furniture-making as well.[12]
Hardwoods are separated into two categories, temperate and tropical hardwoods, depending on their origin. Temperate hardwoods are found in the regions between the tropics and poles, and are of particular interest to wood workers for their cost-effective aesthetic appeal and sustainable sources.[9] Tropical hardwoods are found within the equatorial belt, including Africa, Asia, and South America. Hardwoods flaunt a higher density, around 65lb/cu ft as a result of slower growing rates and is more stable when drying.[9] As a result of its high density, hardwoods are typically heavier than softwoods but can also be more brittle.[9] While there are an abundant number of hardwood species, only 200 are common enough and pliable enough to be used for woodworking.[11] Hardwoods have a wide variety of properties, making it easy to find a hardwood to suit nearly any purpose, but they are especially suitable for outdoor use due to their strength and resilience to rot and decay.[9] The coloring of hardwoods ranges from light to very dark, making it especially versatile for aesthetic purposes. However, because hardwoods are more closely grained, they are typically harder to work than softwoods. They are also harder to acquire in the United States and, as a result, are more expensive.[9]
​The plan tutorial includes images, diagrams, step-by-step instructions, and even a video to help you along the way. You can also go with some more bookcase design ideas. Browse the internet for more and we are also proving a link below to some more ideas to this plan. Select and build one of these free bookcase DIYs and you will have everything available easily that you need to get started creating a bookshelf for any room in your house. 

Can you believe that this amazing wine rack the image below has been built using old wood pallets? Perhaps you can. Isn’t it wonderful that your old wood pallets can be reused to build something so beautiful and useful? I am not a drinker but I liked the idea so much that I just couldn’t resist making myself one. Although later I gifted it to my parents, who totally loved it.
A woodworker's Workbench is a special type of bench designed to hold your work when you are working on a wood project. The main purpose of this table is to keep the woodwork steady and to prevent it from moving. Follow the tutorial below to build yourself a nice workbench suitable for your specific woodworking projects. Make sure to modify the table to fit your specific requirements.