Here are the guitar chords for "What a Wonderful World" by Louis Armstrong, as found in the search results:

• Verse 1: C, Em, F, Em, Dm, C, E7, Am, Ab, Dm7, G, C, G
• Verse 2: C, G, Am, Em, Dm, C, E7, Am, F, G, C
• Verse 3: G, C, G, C, Am, Em, Am, Em, Am, Em, C, G
• Verse 4: C, G, Am, Em, Dm, C, E7, Am, F, G, C

There are several resources available online that provide the chords for this song, including Ultimate Guitar, Chordie, and GuitareTab. Additionally, there are guitar tutorials on YouTube that demonstrate how to play the song, such as the one by Toni Lindgren and the one by Rudy Hero.