diff --git a/assignmentTwo/fraction.cpp b/assignmentTwo/fraction.cpp
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diff --git a/assignmentTwo/librarybook b/assignmentTwo/librarybook
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Binary files /dev/null and b/assignmentTwo/librarybook differ
diff --git a/assignmentTwo/librarybook.cpp b/assignmentTwo/librarybook.cpp
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--- /dev/null
+++ b/assignmentTwo/librarybook.cpp
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+/*
+Program Name: Library Book
+Process: ???
+Function Input/Parameters: ???
+Function Output/Parameters: ???
+Function Output/Returned: ???
+Device Input/Device: ???
+Device Output/Monitor: ???
+Dependencies: ???
+*/
+
+#include <cstdio>
+#include <cstdlib>
+#include <iostream>
+#include <cstring>
+#include <vector>
+#include <random>
+#include <algorithm>
+#include <time.h>
+
+using namespace std;
+
+// class definitions
+class LibraryBook
+{
+private:
+    string title;
+    string author;
+    string ISBN;
+    bool checkedOut;
+public:
+    LibraryBook()
+    {
+        // default constructor
+        title = "";
+        author = "";
+        ISBN = "";
+        checkedOut = false;
+    }
+    LibraryBook(string bookTitle, string bookAuthor, string bookIsbn)
+    {
+        // most likely definition for a book
+        title = bookTitle;
+        author = bookAuthor;
+        ISBN = bookIsbn;
+        checkedOut = false;
+    }
+    ~LibraryBook()
+    {
+        // default destructor
+    }
+    // accessor functions
+    string getBookTitle()
+    {
+        return title;
+    }
+    string getBookAuthor()
+    {
+        return author;
+    }
+    string getBookIsbn()
+    {
+        return ISBN;
+    }
+    bool isCheckedOut()
+    {
+        return checkedOut;
+    }
+    void printBookDetails()
+    {
+        // print out a formatted book detail 'card'
+        cout << "Library Book:" << endl;
+        cout << "\tBook Title      : " << title << endl;
+        cout << "\tBook Author     : " << author << endl;
+        cout << "\tBook ISBN       : " << ISBN << endl;
+        cout << "\tBook Checked Out: " << boolalpha << checkedOut << endl;
+    }
+    // mutator functions
+    void setBookTitle(string bookTitle)
+    {
+        title = bookTitle;
+    }
+    void setBookAuthor(string bookAuthor)
+    {
+        author = bookAuthor;
+    }
+    void setBookIsbn(string bookIsbn)
+    {
+        ISBN = bookIsbn;
+    }
+    void checkOutBook()
+    {
+        checkedOut = true;
+    }
+    void checkInBook()
+    {
+        checkedOut = false;
+    }
+    void getBookDetails()
+    {
+        // ask the user for each book detail.
+        cout << "New Library Book:" << endl;
+        cout << "\tEnter in a book title: ";
+        // cin >> title;
+        getline(cin, title);
+        // cin.ignore(256, '\n');
+        cout << "\tEnter in " << title << "'s Author: ";
+        // cin >> author;
+        getline(cin, author);
+        // cin.ignore(256, '\n');
+        cout << "\tEnter in " << title << "'s ISBN: ";
+        // cin >> ISBN;
+        getline(cin, ISBN);
+        // cin.ignore(256, '\n');
+        cout << "\tThe book will be set to not checked out." << endl;
+        // set the book checked out to false.
+        checkedOut = false;
+    }
+};
+
+// function definitions
+
+// main function
+int main()
+{
+    bool finishBookInput = false;
+    char finishBookInputChar;
+    string requestTitle;
+    int shelfSize = 0;
+    // create a vector storage for a 'bookshelf.'
+    vector<LibraryBook> bookshelf;
+    // working book definition
+    LibraryBook workingBook;
+    cout << "--- Library Book Program ---" << endl;
+    cout << "-----  Program  Start  -----" << endl;
+    cout << "" << endl;
+    // need a while loop
+    while (!finishBookInput)
+    {
+        // cin.ignore();
+        // ask user to input book.
+        workingBook.getBookDetails();
+        // once details are input, save to the shelf.
+        bookshelf.push_back(workingBook);
+        // display the book input.
+        workingBook.printBookDetails();
+        // check in/out book by title.
+            // ask user for another book title.
+        cout << "Enter a title to check out: " << endl;
+        // cin >> requestTitle;
+        getline(cin, requestTitle);
+        shelfSize = bookshelf.size();
+            // for loop through the vector, if the title is found, check out the book.
+        for(int shelfIterator = 0; shelfIterator < shelfSize; shelfIterator++)
+        {
+            // check to see if the book matches
+            if(bookshelf[shelfIterator].getBookTitle() == requestTitle)
+            {
+                // the book matched, 
+                if(bookshelf[shelfIterator].isCheckedOut())
+                {
+                    // check back in the book
+                    bookshelf[shelfIterator].checkInBook();
+                    cout << requestTitle << " has been checked in." << endl;
+                }
+                else
+                {
+                    // check out the book
+                    bookshelf[shelfIterator].checkOutBook();
+                    cout << requestTitle << " has been checked out." << endl;
+                }
+            }
+        }
+        // ask user if they want to input another book.
+        cout << "Enter another book?: ";
+        // finishBookInputChar = getchar();
+        cin >> finishBookInputChar;
+        cin.ignore();
+        if(finishBookInputChar == 'n' || finishBookInputChar == 'N')
+        {
+            finishBookInput = true;
+        }
+        cout << endl;
+    }
+    return 0;
+}
diff --git a/assignmentTwo/userInventory.cpp b/assignmentTwo/userInventory.cpp
new file mode 100644
index 0000000..e69de29