What was planned as an ebook, turned out to be a full course with a 250-page ebook, 8 source code projects and 3 screencasts series in which I guide you through the process of building your own applications with Redux and MobX.
I had a hard time to find toys to make kids curious about coding. That's why I collected them in a spreadsheet with a couple of properties such as age, material, price, and category to buy them for my niece and nephew at the right age. I thought it may be interesting for others too, so I uploaded them in a CMS and created a website them.