While flipping through the boards, keep an eye open for signs that a number of boards may have come from the same tree. Looking at the ends and the growth rings will tell you where in the log the board was sawn. In some cases, knots may go through more than one board, and often the outer boards have a live edge. By comparing these features, the colouring, grain and other distinguishing marks, it is often possible to identify several boards cut from the same log.
Aside from pallets, lots of other things can also be repurposed into components for a DIY coffee table. For example, this one has a tile top. The frame is made of wood and can be crafted in no time. In fact, you can use some leftover wood pieces and if you also have an extra tile from previous renovations this can prove to be a cheap coffee table which you can build with things you already own.
The next hand tool every woodworker should have is a nail set. In fact, you should have several sizes. They look like awls, and you use them to drive nail heads into the wood so they are flush or right below the surface. This allows you to fill the holes and prepare for staining or painting. The nail setter will usually have either a convex or concave surface to grip the nail better and keep it from sliding off and marring the wood.
Please read through the entire plan and all comments before beginning this project. It is also advisable to review the Getting Started Section. Take all necessary precautions to build safely and smartly. Work on a clean level surface, free of imperfections or debris. Always use straight boards. Check for square after each step. Always predrill holes before attaching with screws. Use glue with finish nails for a stronger hold. Wipe excess glue off bare wood for stained projects, as dried glue will not take stain. Be safe, have fun, and ask for help if you need it. Good luck!