This pattern is suited for beginning crocheters, and is using US terms and abbreviations.

What do you need:

• yarn (I used Softfun Batik cotton/acrylic yarn by Scheepjeswol)
• a matching crochet hook (I used a 4mm hook)
• a darning needle to sew in the ends
• a pair of scissors

There’s also a tutorial on how to line the bag! You can find it here:
http://winkieflash.nl/2013/10/04/line-squares-bag/