æz ˈætləs sˈɛɡweɪd ˌɪntʊ mˈɑːɹvəl, ɡˈoʊldbɜːɡ bɪɡˈæn fɹˈiːlænskˈʌlɚɹɪŋ ðə kˈʌmpəniz kˈɑːmɪk bˈʊks θɹuː ðə mˈɪd nˈaɪntiːnhˈʌndɹɪd sˈɪksti z, wˈɜːkɪŋ wɪð sˈʌtʃ ˈɑːɹɾɪsts æz stˈiːv dˈɪtkoʊ ænd dʒˈæk kˈɜːbi tə kɹiːˈeɪt ðə kˈʌlɚ dɪzˈaɪnz fɔːɹ sˈʌtʃ kˈæɹɪktɚz æz spˈaɪdɚmˈæn, ðə fæntˈæstɪk fˈoːɹ, ðə hˈʌlk ænd ˈʌðɚz dˈʊɹɹɪŋ wʌt hɪstˈoːɹiənz kˈɔːl ðə sˈɪlvɚɹ ˈeɪdʒ ʌv kˈɑːmɪk bˈʊks.
As Atlas segued into Marvel, Goldberg began freelance-coloring the company's comic books through the mid-1960s, working with such artists as Steve Ditko and Jack Kirby to create the color designs for such characters as Spider-Man, the Fantastic Four, the Hulk and others during what historians call the Silver Age of comic books.