diff --git a/your-code/solutions.sql b/your-code/solutions.sql
new file mode 100644
index 0000000..6cec422
--- /dev/null
+++ b/your-code/solutions.sql
@@ -0,0 +1,55 @@
+-- Challenge 1
+
+SELECT au.au_id, au.au_lname, au.au_fname, t.title, p.pub_name
+FROM publications.authors au 
+LEFT JOIN publications.titleauthor ta ON au.au_id = ta.au_id
+LEFT JOIN publications.titles t ON ta.title_id = t.title_id
+LEFT JOIN publications.publishers p ON t.pub_id = p.pub_id
+WHERE t.title IS NOT NULL
+ORDER BY au.au_id ASC;
+
+SELECT *
+FROM publications.titleauthor;
+
+-- Challenge 2
+SELECT au.au_id, au.au_lname, au.au_fname, p.pub_name, COUNT(p.pub_name) AS 'title_count'
+FROM publications.authors au 
+LEFT JOIN publications.titleauthor ta ON au.au_id = ta.au_id
+LEFT JOIN publications.titles t ON ta.title_id = t.title_id
+LEFT JOIN publications.publishers p ON t.pub_id = p.pub_id
+WHERE t.title IS NOT NULL
+GROUP BY au.au_lname, au.au_fname, p.pub_name
+ORDER BY au.au_id DESC;
+
+-- Challenge 3 
+SELECT au.au_id, au.au_lname, au.au_fname, SUM(t.ytd_sales) AS 'Total_Sales'
+FROM publications.authors au 
+LEFT JOIN publications.titleauthor ta ON au.au_id = ta.au_id
+LEFT JOIN publications.titles t ON ta.title_id = t.title_id
+LEFT JOIN publications.publishers p ON t.pub_id = p.pub_id
+WHERE t.title IS NOT NULL
+GROUP BY au.au_id
+ORDER BY Total_Sales DESC
+LIMIT 3;
+
+-- Challenge 4	
+SELECT au.au_id, au.au_lname, au.au_fname, SUM(t.ytd_sales) AS 'Total_Sales'
+FROM publications.authors au 
+LEFT JOIN publications.titleauthor ta ON au.au_id = ta.au_id
+LEFT JOIN publications.titles t ON ta.title_id = t.title_id
+LEFT JOIN publications.publishers p ON t.pub_id = p.pub_id
+WHERE t.title IS NOT NULL
+GROUP BY au.au_id
+ORDER BY Total_Sales DESC;
+
+-- Bonus Challenge
+SELECT au.au_id, au.au_lname, au.au_fname, SUM(t.royalty*(ta.royaltyper/100)) AS 'Royalty per Sale', (SUM('Royalty per Sale') + SUM(t.advance)) AS 'Profit'
+FROM publications.authors au 
+LEFT JOIN publications.titleauthor ta ON au.au_id = ta.au_id
+LEFT JOIN publications.titles t ON ta.title_id = t.title_id
+LEFT JOIN publications.publishers p ON t.pub_id = p.pub_id
+WHERE t.title IS NOT NULL
+GROUP BY au.au_id
+ORDER BY Profit DESC
+LIMIT 3;
+