diff --git a/your-code/solutions.sql b/your-code/solutions.sql
new file mode 100644
index 0000000..1a68b89
--- /dev/null
+++ b/your-code/solutions.sql
@@ -0,0 +1,60 @@
+-- Challenge 1 - Who Have Published What At Where?
+
+
+WITH tab1 as ( SELECT au_lname, au_fname, title_id
+FROM authors INNER JOIN titleauthor 
+ON authors.au_id = titleauthor.au_id ),
+tab2 as ( SELECT au_lname, au_fname, title, pub_id
+FROM tab1 INNER JOIN titles 
+ON tab1.title_id = titles.title_id ),
+tab3 as (SELECT au_lname as "LAST NAME", au_fname as "FIRST NAME", title as "TITLE", pub_name as "PUBLISHER"
+FROM tab2 INNER JOIN publishers 
+ON  tab2.pub_id = publishers.pub_id)
+SELECT *
+from tab3;
+
+SELECT count(*)
+from titleauthor;
+
+-- Challenge 2 - Who Have Published How Many At Where?
+
+WITH tab1 as ( SELECT authors.au_id, au_lname, au_fname, title_id
+FROM authors INNER JOIN titleauthor 
+ON authors.au_id = titleauthor.au_id ),
+tab2 as ( SELECT au_id, au_lname, au_fname, title, pub_id
+FROM tab1 INNER JOIN titles 
+ON tab1.title_id = titles.title_id ),
+tab3 as (SELECT au_id as "AUTHOR ID ", au_lname as "LAST NAME", au_fname as "FIRST NAME", count(title) as "TITLE COUNT", pub_name as "PUBLISHER"
+FROM tab2 INNER JOIN publishers 
+ON  tab2.pub_id = publishers.pub_id
+GROUP BY au_id, au_lname, au_fname, pub_name)
+SELECT *
+from tab3;
+
+-- Challenge 3 - Best Selling Authors
+
+WITH tab1 as ( SELECT authors.au_id, au_lname, au_fname, title_id
+FROM authors INNER JOIN titleauthor 
+ON authors.au_id = titleauthor.au_id ),
+tab2 as ( SELECT au_id as "AUTHOR ID", au_lname as "LAST NAME", au_fname as "FIRST NAME", SUM(qty) as "TOTAL"
+FROM tab1 INNER JOIN sales 
+ON tab1.title_id = sales.title_id 
+GROUP BY au_id, au_lname, au_fname
+ORDER BY SUM(qty) desc
+LIMIT 3)
+SELECT *
+from tab2;
+
+-- Challenge 4 - Best Selling Authors Ranking
+
+WITH tab1 as ( SELECT authors.au_id, au_lname, au_fname, title_id
+FROM authors INNER JOIN titleauthor 
+ON authors.au_id = titleauthor.au_id ),
+tab2 as ( SELECT au_id as "AUTHOR ID", au_lname as "LAST NAME", au_fname as "FIRST NAME", SUM(qty) as "TOTAL"
+FROM tab1 LEFT JOIN sales 
+ON tab1.title_id = sales.title_id 
+GROUP BY au_id, au_lname, au_fname
+ORDER BY SUM(qty) desc)
+SELECT *
+from tab2;
+