All the neon signs artworks in this book use eight-color printing (including four types of fluorescent colors), bringing out the true effect of the signage manuscripts. Readers can use the mini UV torch included with the book to simulate the glowing effect of neon lights at night, leading readers to appreciate these neon signage manuscripts from the 50s to 70s from different angles (day and night), and to record the beauty of Hong Kong's neon signage.