diff --git a/cmd/session/session.go b/cmd/session/session.go
index 5ea746f..947a20f 100644
--- a/cmd/session/session.go
+++ b/cmd/session/session.go
@@ -52,8 +52,7 @@ type SessionModel struct {
 	// store
 	store    *file.SessionFileStore
 	lenStore int
-
-	result []any
+	result   []any
 
 	// json
 	InputJson string
@@ -307,7 +306,7 @@ func (m *SessionModel) updateViewportContent(session *models.Session) {
 
 }
 
-func (m *SessionModel) createMDRenderer(width int) *glamour.TermRenderer {
+func (m *SessionModel) createMDRenderer() *glamour.TermRenderer {
 	renderer, err := glamour.NewTermRenderer(
 		glamour.WithStandardStyle("dracula"),
 		glamour.WithWordWrap(m.viewport.GetWidth()),
@@ -321,7 +320,7 @@ func (m *SessionModel) createMDRenderer(width int) *glamour.TermRenderer {
 func (m *SessionModel) handleWindowSize(msg tea.WindowSizeMsg) {
 	m.group.SetSize(msg.Width, msg.Height)
 	m.document.SetSize(msg.Width, msg.Height)
-	m.mdRenderer = m.createMDRenderer(msg.Width)
+	m.mdRenderer = m.createMDRenderer()
 }
 
 func (m *SessionModel) handleError(msg tea.Msg) {
@@ -416,7 +415,7 @@ func (m *SessionModel) loadStore() tea.Cmd {
 	return func() tea.Msg {
 		sStore, err := file.NewDefaultSessionFileStore()
 		if err != nil {
-			return errorMsg{err}
+			panic(err)
 		}
 
 		return storeLoadedMsg{sStore}
diff --git a/pkg/models/exam.go b/pkg/models/exam.go
index 00b9785..d967df5 100644
--- a/pkg/models/exam.go
+++ b/pkg/models/exam.go
@@ -15,7 +15,7 @@ type Exam struct {
 }
 
 func (e *Exam) String() string {
-	return fmt.Sprintf("Exam ID %v with %v quizzes.", e.ID, len(e.Quizzes))
+	return fmt.Sprintf("%v's exam with %v quizzes.", e.Participant, len(e.Quizzes))
 }
 
 func (e *Exam) GetHash() string {
diff --git a/pkg/models/response.go b/pkg/models/response.go
index 82eda44..71b511c 100644
--- a/pkg/models/response.go
+++ b/pkg/models/response.go
@@ -5,14 +5,21 @@ import (
 	"fmt"
 )
 
+type ParticipantAnswer struct {
+	Quiz    *Quiz   `json:"question"`
+	Answer  *Answer `json:"answer"`
+	Correct bool    `json:"correct"`
+}
+
 type Response struct {
 	Meta
 
-	Questions map[string]string
+	SessionID string               `json:"session_id"`
+	Answers   []*ParticipantAnswer `json:"answers"`
 }
 
 func (r *Response) String() string {
-	return fmt.Sprintf("Questions/Answers: %v", r.Questions)
+	return fmt.Sprintf("Questions/Answers: %v", r.Answers)
 }
 
 func (r *Response) GetHash() string {
diff --git a/pkg/models/session.go b/pkg/models/session.go
index 49ff185..0e52303 100644
--- a/pkg/models/session.go
+++ b/pkg/models/session.go
@@ -9,8 +9,11 @@ import (
 type Session struct {
 	Meta
 
-	Title string           `json:"title"`
-	Exams map[string]*Exam `json:"exams"`
+	Title       string             `json:"title"`
+	Description string             `json:"description"`
+	Quizzes     map[string]*Quiz   `json:"quizzes"`
+	Answers     map[string]*Answer `json:"answers"`
+	Exams       map[string]*Exam   `json:"exams"`
 }
 
 func (s *Session) String() string {
diff --git a/pkg/store/file/quiz_test.go b/pkg/store/file/quiz_test.go
index 30a146f..d9fcaba 100644
--- a/pkg/store/file/quiz_test.go
+++ b/pkg/store/file/quiz_test.go
@@ -87,7 +87,7 @@ func (t *quizTestSuite) TestCreate() {
 							t.Equal(a.Text, quiz.Answers[i].Text)
 						}
 						for i, tag := range quizFromDisk.Tags {
-							t.Equal(tag.Name, quiz.Tags[i].Name)
+							t.Equal(tag, quiz.Tags[i])
 						}
 					}
 				}
diff --git a/pkg/store/file/session.go b/pkg/store/file/session.go
index a568357..7cbc62e 100644
--- a/pkg/store/file/session.go
+++ b/pkg/store/file/session.go
@@ -5,10 +5,10 @@ import (
 	"git.andreafazzi.eu/andrea/probo/pkg/store"
 )
 
-type SessionFileStore = FileStore[*models.Session, *store.Store[*models.Session]]
+type SessionFileStore = FileStore[*models.Session, *store.SessionStore]
 
 func NewSessionFileStore(config *FileStoreConfig[*models.Session, *store.SessionStore]) (*SessionFileStore, error) {
-	return NewFileStore[*models.Session](config, store.NewStore[*models.Session]())
+	return NewFileStore[*models.Session](config, store.NewSessionStore())
 }
 
 func NewDefaultSessionFileStore() (*SessionFileStore, error) {
diff --git a/pkg/store/session.go b/pkg/store/session.go
index 8bb9b71..a0ac3ed 100644
--- a/pkg/store/session.go
+++ b/pkg/store/session.go
@@ -1,5 +1,82 @@
 package store
 
-import "git.andreafazzi.eu/andrea/probo/pkg/models"
+import (
+	"fmt"
 
-type SessionStore = Store[*models.Session]
+	"git.andreafazzi.eu/andrea/probo/pkg/models"
+)
+
+type SessionStore struct {
+	*Store[*models.Session]
+}
+
+type ErrSessionAlreadyPresent struct {
+	hash string
+}
+
+func (e *ErrSessionAlreadyPresent) Error() string {
+	return fmt.Sprintf("Session with hash %v is already present in the store.", e.hash)
+}
+
+func NewSessionStore() *SessionStore {
+	return &SessionStore{
+		Store: NewStore[*models.Session](),
+	}
+
+}
+
+func (s *SessionStore) Create(session *models.Session) (*models.Session, error) {
+	if hash := session.GetHash(); hash != "" {
+		session, ok := s.hashes[hash]
+		if ok {
+			return session, &ErrSessionAlreadyPresent{hash}
+		}
+	}
+
+	session.Quizzes = make(map[string]*models.Quiz, 0)
+	session.Answers = make(map[string]*models.Answer, 0)
+
+	for _, exam := range session.Exams {
+		for _, quiz := range exam.Quizzes {
+			session.Quizzes[quiz.ID] = quiz
+
+			for _, answer := range quiz.Answers {
+				session.Answers[answer.ID] = answer
+			}
+		}
+	}
+
+	sess, err := s.Store.Create(session)
+	if err != nil {
+		return nil, err
+	}
+
+	return sess, nil
+}
+
+func (s *SessionStore) Update(session *models.Session, id string) (*models.Session, error) {
+	_, err := s.Read(id)
+	if err != nil {
+		return session, err
+	}
+
+	session.Quizzes = make(map[string]*models.Quiz, 0)
+	session.Answers = make(map[string]*models.Answer, 0)
+
+	for _, exam := range session.Exams {
+		for _, quiz := range exam.Quizzes {
+			session.Quizzes[quiz.ID] = quiz
+
+			for _, answer := range quiz.Answers {
+				session.Answers[answer.ID] = answer
+			}
+		}
+	}
+
+	sess, err := s.Store.Update(session, id)
+	if err != nil {
+		return nil, err
+	}
+
+	return sess, nil
+}