30 Day Itinerary

Welcome!

You’ll need to give us a bit more info, question is too broad.

Here is a good starting point
https://www.ricksteves.com/europe/italy

Welcome to the forum Julie!
Is this your first visit to Italy? What do you want to see and do? What are your priorities? Are you traveling solo? Does the 30 days include flights to and from Italy? Do you have a good guidebook for ideas and reference?
Are you aware that it’s Jubilee year? Italy is expecting 3 million more tourists? Personally I would not let that stop me from visiting. But I would be aware that prices are going to be higher and the main tourist haunts will be busier. This especially applies to Rome. Everything will book quickly.

I spent 28 nights in Italy this fall: 5 nights in Venice (3rd visit), RS Village Italy tour to see the hill towns, 4 nights in Florence (1st visit) and 5 nights in Rome (2nd visit).

Venice, Florence, Rome and the Naples area (Sorrento, Capri, Pompeii and the Amalfi Coast).
Those should be your first choices. Plan 6 days in Rome, 4 in Florence, 4 in Venice and 4 in the Naples area.

Then consider places like Siena, Orvieto, Bologna, Ravenna, Verona, Lucca, Pisa and Cinque Terre.

WOW! A month in Italy is a dream come true! Since it's your first time I suppose you'll want to see the 'big 3' (Venice, Florence, Rome) and maybe an add-on to Naples (includes Capri, Pompeii, Sorrento, Amalfi Coast - but each is a day trip in and of itself). While you are seeing the sites, of which there are many in each city, don't forget to discover the culture that took thousands of years to ingrain itself into the minds and hearts of the Italian people. Those include: no cappuccino after 10 or 11 o'clock; gelato at any time of the day or night; long and relaxing dinners after at least 8 o'clock where translating the menu will be tricky and fun; enjoy the local wines; taking a riposo (rest) every afternoon and then starting a whole new part of your adventure. Now the difficult part: start planning because Italy is going to be crowded because of the Jubilee Year. But make planning part of the fun. For the main museums and archeological sites, make reservations as soon as possible. That will also help you figure out your travel calendar. Where are you flying from? Check for best flights (google.com/flights is really good), or Skyscanner.com. I use both especially since Skyscanner let's you search "Italy" and they show you all the airports with prices (economy only - but that's a start). Not prying, but are you comfortable in economy seats or are you looking for a more relaxing trip in Premium or Business? I've been doing the Premium Economy for years and find I'm more rested for an early arrival. Business, of course, is even more relaxing. Welcome to the RS forum! Keep checking because this gang is going to give you lots to think about so that you have lots of great memories! Remember, You deserve this! And, you can plan your return visit while on the plane going home.

Hi and welcome to the forum, Julie -
Just echoing Christine and Horsewoofie here: the more we know about you and what's involved with this trip (see Horsewoofie's questions) the better we can help. And not to make you nervous but end of April is really not far away so time is of the essence to get the plans in stone, reservations made, and advance tickets ordered (or primed to be ordered) for attractions which require that.

The "Greatest Hits" locations are going to be busy indeed but if you know that up front and are OK managing crowds, no problem; it is what it is. There are also attractions and corners which fewer rather than more poke at, or which cover wide areas so finding some breathing room now and again is entirely possible.

LOL, I'll have to cheerfully disagree with Robert on a couple of points: We've ordered cappuccino at almost all hours of the day and never had a barista faint dead away or even give us the hairy eyeball. Haven't done it after dinner, though. Oh, and we've found all sorts of places to have those dinners before 8:00 too. Neither of us can sleep well on a full stomach! :O)

Hey Kathy! At least agree: gelato at any time!!!! :)

LOL Robert! You are spot on: ANY time is gelato time! :O)