First thing that caught my eye is how 地図 (map, in Japanese) is annotated マップ (transliterated “map”, from English). This language is out of control!
Surprisingly useful if you travel there! Want some coffee? Well gosh, that's コヒ (kohi). Need a bathroom? Look for トイレ!(toire). Worth noting these are more than annotations, they are loan words and are part of the language in daily life.
It's easy to know if you are looking at katakana, and if it is you can expect to be able to sound it out to a foreign word, commonly english. It's very different stylistically to the other two scripts, hiragana and kanji. Much sharper, more masculine but still simple looking.(kanji) 漢字, (hiragana) ひらがな、 (katakana) カタカナ.