Some patterns are written and some - charted (see details for each one):

https://www.ravelry.com/patterns/library/times
https://www.ravelry.com/patterns/library/new-years-necklace
https://www.ravelry.com/patterns/library/cowl-unisex
https://www.ravelry.com/patterns/library/incantation-tabl...
https://www.ravelry.com/patterns/library/infinity-wrap-3
https://www.ravelry.com/patterns/library/rotunda-cats-hou...
https://www.ravelry.com/patterns/library/sweater-succession
https://www.ravelry.com/patterns/library/one-skein-diagon...
https://www.ravelry.com/patterns/library/yellow-lace-top
https://www.ravelry.com/patterns/library/cabled-skull-cha...
https://www.ravelry.com/patterns/library/necklace-transce...

These projects are suitable for beginners who know how to work basic crochet stitches like chains, single crochet, half double crochet, double crochet, treble crochet, slip stitches (in American crochet terms). See details for each pattern.

For Ravelers who look for something challenging and unique and are bored with easy crochet projects.