For work, I was visiting some schools to look at the work they do across the artforms. At one junior school I was given a few sketches some 8 year olds had done. I was staggered. The intricate, complicated, beautiful patterns they had managed to create was way beyond any expectations for their years, probably even for a 15 or 16 year old they would have been impressive. It wasn't a fluke, there was page after page after page, from every child in the class. Something staggering was going on.
Here's the thing. I am that person who says "I can't draw". I imagine at least 50-60% of that class would have said the same. But, it seems, when it comes to pattern, I can (that's my first attempt above, not too terrible for someone who can't draw). I would really recommend having a go if you either feel you can't draw, you have a naturally obsessive love of pattern, you're a teacher or run any kind of group of people who would benefit from losing themselves in the moment for a while (community groups, patients etc) or could make use of a technique which moves your brain into a different place for a while.
The kit I bought was unecessarily over priced. Yes it was beautifully packaged and had some sumptuous materials, but all you really need is the technique - the rest you really conjour up for yourself. If you want to treat yourself do buy the full kit (see below) and treasure it for life; otherwise try Zentangle Untangled (comes out in July but you can pre-order now) or for a real budget version (it's very thin but does cover the basics) Zentangle Basics. You can see more examples of Zentangles *here*.