Very few cards included for programming exercises.
Letters are missing from the learning process.
The cards are relatively small in a huge box.
The marker and eraser are of poor quality.
There are other "notebooks" for programming with much better work.

Relatively good quality but be careful with what is included in the box because it doesn't have all the letters of the alphabet for all the words and it only has a few exercises that can be completed in just one day.... and it has been put on the shelf

Very bad literally and the reasons are the following.
1. While it is in a huge box, the cards have a size of 15 x 10.
2. Because the cards are small, the programming exercises are incredibly difficult, meaning the "I" is about 2 centimeters and the "O" has a diameter slightly larger than 1 centimeter, it is difficult even for adults...
3. The eraser and the marker are completely terrible with the worst quality, wrong, it's not an eraser, it's foam latex.
I recommend a notebook with programming exercises and stay away from this product.