Pen tool in Adobe Illustrator is a tool which is essential for any designer, whether you are working for print design, web design or motion graphics, you’ll find the pen tool essential for achieving your serious artworks tasks. The pen tool is there in almost all Adobe software like Adobe Illustrator, Adobe Photoshop, Adobe After Effects.
The pen tool is difficult for beginners somewhat but once you started with it, you’ll love this tool because you are free to draw any shape or even trace your real images to convert them into perfect vector shapes as you like. There are many tutorials on the web for pen tool but I recommend you to start with the game by Adobe which you can play here and test and learn pen tool skills. You can access the game here
Try the game and then do it yourself in actual software and draw shapes without any hesitation, first you’ll feel difficulty (not necessarily) but when you practice it, it will become your best friend.