Does HTML/CSS count? If so, then mine was "Head First (X)HTML and CSS". It was an awesome book that really managed to get me excited about the subject. That end

Does HTML/CSS count? If so, then mine was "Head First (X)HTML and CSS". It was an awesome book that really managed to get me excited about the subject. That ended up being my gateway into JS, PHP, Python, etc. And yes, that was relatively recently (only about 4-5 years ago), which dramatically reduces the cool/nostalgia factor there.