How would it work? I would expect a word document sent to me with the post for me to then edit together. I would write the first paragraph introducing the first topic and then a bit about you. On the document start with a little introduction about you for me to include. Your general background, your blog, what you write about and anything else you would like my readers to know about you. Then anything from 500-1500 words on the topic chosen between the pair of us that we both agree on. I'm honestly open to most topics as long as they interest me but always open to learning more about areas I do not. I tend to go off on massive tangents and rant so depending on the topic obviously will determine the length. Just write what you feel is important. I will edit this into Italics so that it is clear which part is written by whom. I will then write a short closing summary with my opinion and remind (gently haha) readers to check out your blog.
*Subject to change but this is the plan.
P.S. If you would like to collab on my blog (i.e. not the Thought Thursday series) please make sure to write it in the final box.